Transparent sediment filter
1-1/2" model $289
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Easy to see and flush, washable mesh filter lasts forever
Mesh screen in a chemical resistant transparent bowlWater swirls down and keeps the mesh screen clean Flush out sediment with a flick of the red drain valve
Can be taken apart, washed, the unit lasts indefinitelyRated for 120F water temp and 150 psi max
How to use 1-1/2" male pipe thread unit - optimum size as whole house filter
3 psi drop at 50 GPM flow, wingspan 14", height 17"
Available screens: 24 mesh (711 microns), 30 (533), 40 (381), 60 (254) 100 (152), 140 (104), 250 (61), 500 (30) and 1,000 (15)Try a few different size meshes to match water
If too fine, it plugs up, if too coarse, not much filteringSome install two units in a row with two mesh sizesGood to put one ahead of Triple or Double Big Blue
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Cost includes US shipping, click on red $$ underlined, extra for AK, HI and overseas
2" MPT unit and a spare screen $344, consists of complete unit $260 and a spare screen of other mesh size $84
1-1/2" MPT unit and a spare screen $289, consists of complete unit $215 and a spare screen of other mesh size $74
1" MPT unit and a spare screen $234, consists of complete unit $170 and a spare screen of other mesh size $64
Order as shown, a complete unit and a spare mesh, we exchange meshes free until you get it right (you return the old)
Prices reflect historic data on how many free exchanges are requested after a sale
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NextSand backwash filter treats large amount of sediment of complex composition at 13-8 GPM
NextSand auto filter
Natural color vessel
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Fleck backwash control
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What it does
Multi media filter reduces large amount of sediment of complex composition from whole house water
Consists of multi-layers of anthracite coal, calcined aluminum silicate and garnet
Water-borne sand, rust, dirt and such are caught throughout the layers, get blown away during backwash
Original media seen to last several years with proper backwash
No chemical regeneration required, nothing is imparted into the house water
Unit fully loaded, 1" MPT for inlet/outlet, 1/2" FPT drain, straightforward installation
Tank colors, almond, blue or black, chrome tank jacket for better aesthetics available, call 888-928-3794 for prices
Reference: NextSand from Next Filtration Technologies
Complete unit, ready for plumbing - we assist installation with diagrams, written instructions, live phone calls
Capacity in cubic foot | Tank diam/tall | Fleck valve | Service flow rate | Backwash flow rate | complete unit price | Ship wgt |
2.0 | 12"/52" | 7000 | 12 GPM | 13 GPM | | 125 lbs |
1.5 | 10"/54" | 7000 | 6 GPM | 11 GPM | | 105 lbs |
1.0 | 9"/48" | 7000 | 6 GPM | 8 GPM | | 90 lbs |
0.75 | 8"/47" | 7000 | 5 GPM | 8 GPM | | 75 lbs |
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Sediment level and household size determine the recommended capacity, the larger the better
2 cubic foot for 10+ people with high level sediment, 1.5 cf for 4-6 with moderate
1 cf for 1-2 people with low level sediment, 0.75 cf for 1 personRequires robust backwash flow, consistent feed water pressure of 40-60 psi with 3/4" or larger pipe Top
Washable bag sediment filter - works like a vacuum cleaner, washable (or disposable) bag traps dirt
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Wholehouse FSI-X100 unit 8" diam, 2-1/2 ft tall, 2" FPT
Meets ASME code requirements
Bag is 6" diam 20" long
Bag is washable or disposable, good to have a few on hand
Lid holds down bag, special design eliminates need for gaskets
Choose from pore size 50, 25, 10, 5 and 1 micron
Housing options of carbon steel, 304/316 stainless, titanium or hastelloy
Call 888-928-3794 for prices
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Mechanism
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Double Big Blue Sediment Filters - these large cartridges last long time
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What it does
Two large BB Long sediment filters (4-1/2" diameter, 20" tall), last a long time
75/25 and 50/5 micron dual gradient sediments inside, clean the whole house water
Vastly reduces dirt, sand, rust particles and other sediments
Wall bracket, 15-1/4" wide x 8-1/2" deep x 26-1/2" high, 1-1/2" FPT inlet/outlet
Flow rates up to 15 GPM, and pressure drops as low as 3 psi, are typical nbsp; Top
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Single Big Blue Sediment Filters - BB Long or BB Short
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What it does
Sits in the basement and treats the whole house water
Flow rates up to 20 GPM, and pressure drops as low as 2 psi, are typical
Single Big Blue Long housing is 8" wide x 8-1/2" deep x 26-1/2" high
Single Big Blue Short housing is 8" wide x 8-1/2" deep x 14" high
On average, BB Long cartridges typically last one year, BB Short 6 months
- For prices please call 888-928-3794 in US, 978-456-8372 outside US
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Iron Reduction Filter - Most effective for removing just iron
Chemical free iron reduction, self-cleaning media with Fleck back-wash valve
Natural vessel
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2510 valve
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Structural plastic air injector
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Air vent
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What it does
Attention-free operation
removes iron concentrations
of up to 35 ppm
Removes soluble ferrous "clear water" iron,
precipitated ferric "red
water" iron, and bacterial iron
Specify A-type media bed for alkaline water (pH of 7 and above), AM-type media bed for acidic water (pH less than 7)
Five year warranty on 2510
Fleck control valve, 10 year warranty on heavy duty mineral tanks
No chemical regeneration required, nothing is imparted into the house water
All tanks have a dome hole for convenient media addition, except for 1.5 cubic foot 12/52 tank
Complete unit prices -
add air injector ($170) and air vent ($105) for optimum performance/tough condition
We help select best model/size, support installation with diagrams, written instruction, live phone calls
Media type cubic foot | Tank diam/tall | Fleck valve | Peak** flow rate | Service flow rate | Backwash flow rate | complete unit price | Ship wgt |
AM - 2 cu ft | 13"/54" | 2510 | 12 GPM | 6 GPM | 9 GPM | | 207 lbs |
A - 2 cu ft | 13"/54" | 2510 | 12 GPM | 6 GPM | 9 GPM | | 207 lbs |
AM - 1.5 cu ft | 12"/52"* | 2510 | 10 GPM | 5 GPM | 7 GPM | | 184 lbs |
A - 1.5 cu ft | 12"/52"* | 2510 | 10 GPM | 5 GPM | 7 GPM | | 184 lbs |
AM - 1 cu ft | 10"/47" | 2510 | 6 GPM | 4 GPM | 5 GPM | | 160 lbs |
A - 1 cu ft | 10"/47" | 2510 | 6 GPM | 4 GPM | 5 GPM | | 160 lbs |
AM - 0.75 cu ft | 8"/47" | 2510 | 4 GPM | 3 GPM | 4 GPM | | 135 lbs |
A - 0.75 cu ft | 8"/47" | 2510 | 4 GPM | 3 GPM | 4 GPM | $895 | 135 lbs |
*No dome hole on 12/52 tank **Peak flow defined as intermittent flow, less than 10 min duration each cycle
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Activated Carbon Filters - removes chlorine and organic pollutants
Granular activated carbon media and Fleck back-wash control on top
Natural vessel
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Fleck backwash control
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What it does
Coconut shell activated carbon (CS-HAC) filtration media from Clack Corp
Activated carbon for aesthetic chlorine, odor and taste
Programmable backwash regenerates media on schedule, carbon stays clean, far superior to cartridge type filter
Generally no running cost for 4-5 years for a family of 2-3, carbon can be washed with Clorox several times
No chemical regeneration required, nothing is imparted into the house water
Tank colors, almond, blue or black, chrome tank jacket for better aesthetics available, call 888-928-3794 for prices
Complete unit
We support installation with diagrams, written instructions and live phone calls
Capacity in cubic foot | Tank diam/tall | Fleck valve | Service flow rate | Backwash flow rate | complete unit price | Ship wgt |
3.5 | 16"/65" | 2750 | 9 GPM | 9 GPM | | 520 lbs |
2.75 | 14"/65" | 2750 | 7 GPM | 8 GPM | | 440 lbs |
2 | 12"/52" | 2510 | 6 GPM | 7 GPM | | 135 lbs |
1.5 | 10"/54" | 2510 | 6 GPM | 5 GPM | | 100 lbs |
1 | 10"/47" | 5600 | 5 GPM | 5 GPM | | 85 lbs |
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Carbon block filters: you replace cartridges
Please call us for prices at 888-928-3794 within US, 978-456-8372 from outside US
Triple Big Blue Carbon Filters - these large cartridges last long time
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What it does
Activated carbon for aesthetic chlorine, odor and taste
Wall bracket, 23-1/4" wide x 8-1/2" deep x 26-1/2" high, 1" FPT inlet/outlet
Three large carbon cartridges last a long time (4-1/2" diameter x 20" tall each)
1st is 10 micron carbon, 2nd 1 micron, 3rd 0.5 micron
0.5 micron carbon limits the flow rate to 7 GPM, a pressure drop of 10 psi
Fully loaded unit, just hang it up on a wall Top
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Double Big Blue Carbon Filters - these large cartridges last long time
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What it does
Two large carbon filters clean the whole house water at point of entry
10 and 1 micron carbon block filters, last a long time (4-1/2" diameter, 20" tall)
Wall bracket, 15-1/4" wide x 8-1/2" deep x 26-1/2" high, 1" FPT inlet/outlet
Flow rates up to 12 GPM, and pressure drops of 5 psi, are typical
Fully loaded unit, just hang it up on a wall Top
Prices - please call us at 888-928-3794 within US, 978-456-8372 from outside US
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Single Big Blue Carbon Filters - BB Long or BB Short
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What it does
Sits in the basement and treats the whole house water
Flow rates up to 15 GPM, and pressure drops of 5 psi, are typical
Single Big Blue Long housing is 8" wide x 8-1/2" deep x 26-1/2" high
Single Big Blue Short housing is 8" wide x 8-1/2" deep x 14" high
On average, BB Long cartridges typically last one year, BB Short 6 months Top
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UV Filters for Whole House Water - combined with sediment and carbon
Hydrotech UV-BigBoy® series combination filters - industrial size models, last eons between filter changes
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Fully loaded unit, just hang it up on a wall4-1/2" diam, 20" tall cartridges of sediment, carbon and UVSediment removes sand, dirt, silt, scale, sludge and rust
Activated carbon for aesthetic chlorine, odor and taste
Reference on UV: LightSources
Stainless illumination chamber, 120 volts 60 Hz lamp standard200-220 volts, 50-60 Hz optionalFlow rate of 12-50 GPM, with various filter combo, at 60 psi, 1-1/2" FPT
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Model | Price | Sediment | Carbon | UV | Size & weight | Canister(s) |
UVBB-3 |
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x | x | x | 23" w x 9" d x 30" h, 52 lbs | 3 |
UVBB-2 |
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x | no | x | 15" w x 9" d x 30" h, 36 lbs | 2 |
UVBB-1 |
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no | no | x | 8" w x 9" d x 30" h, 20 lbs | 1 |
UV lamp in stainless chamber, 16,000 microwatt second/cm2 illumination
Transformer for 110 volts 60 hz standard, 220 volts and/or 50 hz availableLamp out alarm options available, either audible signal or shutoff solenoid valve, please call
Straightforward installation, 1-1/2"" FPT in and out, a plumber should easily install in a few hours Warranty: 5 years on the housing, 25% restocking and handling charge for change-of-mind no fault return Top
Hydrotech UV-20 series - residential unit, supports 6-8 GPM flow
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Fully loaded unit, just hang it up on a wall
2-1/2" diam, 20" tall cartridges of sediment, carbon and UV, 3/4" FPT inlet/outletSediment removes sand, dirt, silt, scale, sludge and rust
Activated carbon for aesthetic chlorine, odor and taste
Reference on UV: LightSources
Stainless illumination chamber, 120 volts 60 Hz lamp standard200-220 volts, 50-60 Hz optional
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Model | Price | Sediment | Carbon | UV | Size & weight | Canister(s) |
UV20-3 |
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x | x | x | 16" w x 5.5" d x 25" h, 29 lbs | 3 |
UV20-2-C | |
no | x | x | 11" w x 5.5" d x 25" h, 21 lbs | 2 |
UV20-2-S |
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x | no | x | 11" w x 5.5" d x 25" h, 21 lbs | 2 |
UV20-1 |
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no | no | x | 5.5" w x 5.5" d x 25" h, 13 lbs | 1 |
UV lamp in stainless chamber, 16,000 microwatt second/cm2 illumination
Transformer for 110 volts 60 hz standard, 220 volts and/or 50 hz availableLamp out alarm options available, either audible signal or shutoff solenoid valve, please call
Straightforward installation, 3/4" FPT in and out, a plumber should easily install in a few hours Warranty: 5 years on the housing, 25% restocking and handling charge for change-of-mind no fault return Top
Backwash Birm Filter - efficient reduction of iron and/or manganese from house water
Birm filter tank and back-wash control on top: programmable Fleck timer
Natural vessel
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Fleck backwash control
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What it does
Birm® for iron and/or manganese reduction
No chemical regeneration required, nothing is imparted into the house water or drain
Straightforward installation, 1" MPT for inlet and outlet, 1/2" FPT for backwash drain
Thin oxidized layer forms on the media surface, gets scrubbed away during backwash cycle
Birm® works best when incoming water pH is close to neutral, not greasy, organic matters of less than 5 ppm
Works even better with addition of brass hydrocharger and air vent combination ($244 extra)
Original Birm® media seen to last several years, but does not work with chlorinated water, must be removed first
Factory direct delivery from Hydrotech (www.hydrotechwater.com), a top-name brand, without glossy brochures
Tank colors, almond, blue or black, chrome tank jacket for better aesthetics available, call 888-928-3794 for prices
Unit price and operating cost - please call us at 888-928-3794 within US, 978-456-8372 from outside US
Capacity in cubic foot | Tank diam/tall | Fleck valve | Service flow rate | Backwash flow rate | complete unit price | Ship wgt |
3 | 14"/65" | 2750 | 8 GPM | 11 GPM | | 215 lbs |
2.5 | 13"/54" | 2750 | 7 GPM | 10 GPM | | 185 lbs |
2 | 12"/52" | 2510 | 6 GPM | 8 GPM | | 155 lbs |
1.5 | 10"/54" | 2510 | 6 GPM | 7 GPM | | 125 lbs |
1 | 10"/47" | 5600 | 5 GPM | 6 GPM | | 95 lbs |
Fe and/or Mn levels and household size determine the recommended tank volume, the larger the better
Requires consistent feed water pressure of 40-60 psi for robust backwash flow
3 cubic foot for 8+ people with high amount iron and/or manganese
2 cf for 4-6 with high amount, 1 cf for 1-2 people with moderate amount
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Filox-R Filter - no more laundry stain, or rotten egg smell in the house water!!
Filox-R filter and back-wash control on top: programmable Fleck timer
Natural vessel
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Fleck backwash control
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What it does
Filox-R for iron, manganese and/or hydrogen sulfide reduction, click for filter media detail
No chemical regeneration required, nothing is imparted into the house water or drain
Straightforward installation, 1" MPT for inlet and outlet, 1/2" MPT for backwash drain
Thin oxidized layer forms on the media surface, gets scrubbed away during backwash cycle
Incoming water pH range of (5.0-9.0) for optimum results, not greasy, organic matters of less than 5 ppm
No chemicals needed, water backwash, media seen to last several years, can be washed/regenerated with Clorox if get greasy or dirty
Factory direct delivery saves you big money, vessel from Hydrotech, media from Alamo-Watts, both top-notch name brand
Tank colors, almond, blue or black, chrome tank jacket for better aesthetics available, call 888-928-3794 for prices
Unit price and operating cost - please call us at 888-928-3794 within US, 978-456-8372 from outside US
Capacity in cubic foot | Tank diam/tall | Pyrolox in cf | Fleck valve | Service flow rate | Backwash flow rate | complete unit price | Ship wgt |
2.5 | 13"/54" | 2.1 | 2750 | 5 GPM | 25 GPM | | 335 lbs |
2 | 12"/52" | 1.7 | 2750 | 4 GPM | 20 GPM | | 273 lbs |
1.5 | 10"/54" | 1.3 | 2510 | 3 GPM | 15 GPM | | 214 lbs |
1 | 10"/47" | 0.83 | 2510 | 3 GPM | 12 GPM | | 155 lbs |
Fe, Mn and/or H2S levels and household size determine the recommended pyrolox volume, the larger the better
Requires consistent feed water flow with pressure of 40-60 psi for vigorous backwash
2.5 cubic foot for 6+ people with high amount iron, manganese and/or hydrogen sulfide
2 cf for 3-5 with moderate amount, 1.5 cf for 1-2 people with moderate amount, 1 cf for one with low amount
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Acid Neutralizer - Restores low pH to neutral (to near 7)
Reverse (or up) flow model: all we can say is it works like a champ
Comes in natural amber color tank though blue is shown here
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Economical, efficient and requires minimal maintenance
Straightforward installation, 1" FPT in/out, that's all
Down the center tube, then water bubbles up through media (hence, up flow)
Acid eats away the sacrificial media, media volume decreases with time
Add media when down to 1/4-1/3 tank height, leave 12" space at the top
When back lit, you can see the media level in amber color tank
Calcite alone works quite well 99% of the time
If iron, manganese and/or sulfur are present, mix in some magnesia (MgO)
We find a mix of (5) calcite and (1) magnesia by weight works quite well
No chemical regeneration required, nothing is imparted into the house water
We have sold several hundred of these units, not one problem or complaint
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Unit price, no media included - includes a dome hole/removable plug for easy media insertion
Tank color will be natural amber, though blue tank is shown above
Capacity in cubic foot | Tank diameter | Tank height | Empty weight | Price without media |
3 | 14" | 65" | 55 lbs | |
2-1/2 | 13" | 54" | 35 lbs | |
1-1/2 | 10" | 54" | 25 lbs | |
Acidity and household size determine the recommended volume, the larger the better
3 cubic foot for 8+ people with high acidity, 2-1/2 cf for 4-6 with moderate, 1-1/2 cf for 1-2 people with low acidity
Recommend buying calcite locally (we help you find an area WQA member dealer), we can also ship in a pinch
For media detail on calcite and magnesia (often sold as Corosex and Corosex II)
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Aerator - Extracts water borne gasses such as methane and hydrogen sulfide
Duke aerator system from Action Manufacturing
What it is, it does
Models range from 160 gallon to 500 gallon capacities, indoor and outdoor applications
Reduce/remove unwanted odors and gasses
Non-chemical alternative for reduction or removal of unwanted gasses or odors
Simple process of spraying water through nozzles in a fine jet mist, naturally releasing the gas or odor
The gas is then vented to the outside using the assistance of a vent blower on indoor models
Limited 10 year warranty on the aerator tank for manufacturing defects
Duke aerator set
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Standard indoor Duke aerator package
Shrouded ½ hp submersible pump in the white aeration chamber
Blue bladder tank, solenoid valve with coil, 115 volt vent blower
Drain pipe with ball valve, spray bar, draw pipe, 0-100 pressure gauge
115 volt pump up switch, 200 volt pump down switch, 155 volt line cord
220 volt line cord, installation instructions
Unit price and operating cost
Please contact us at 888-928-3794 within US, 978-456-8372 from outside US
Only electricity cost to run the submersible pump and blower
Options available
Model A30VOD -- 180 gal -- 37.5" x 27.5" x 68" /oval with vent
350 gall and 500 gallon indoor Duke packages available on request
Choice of 155 volt or 220 volt pump
Larger pumps available for 350 gallon and 500 gall Duke
Larger pressure tanks available on request
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Water Softener Conditioner - prevents clogging up dishwater, water heater, showerhead, pipes and such
Water softener and back-wash control on top: choice of demand initiated regeneration (DIR) or time-clocked
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Metered or demand initiated regeneration
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Time-clocked regeneration
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Removes excess minerals which clog up water heater, dish washer and pipes
Hardness, household size and service flow rate determine the softener size, generally the larger the better
Metered backwash (also known as DIR) takes place after a preprogrammed amount of water is used
Time-clocked backwash is run by a preprogrammed timer, independent of the amount of water used
Factory direct from Hydrotech (www.hydrotechwater.com), a top-name brand, minus glossy brochures
Choice of almond, blue or black for resin tank, white, blue or black for brine tank
Unit price
Capacity in cubic foot | Approx. grains | Resin tank diam/tall | Brine tank diam/tall | Fleck valve | Service flow rate | Backwash flow rate | Metered or clocked | Price | Ship wgt |
2-1/2 | 80,000 | 14"/50" | 18"/33" | 5600 | 23 GPM | 6 GPM | Metered | | 190 lbs |
2 | 64,000 | 12"/52" | 18"/33" | | 18 GPM | 5 GPM | Metered | | 160 lbs |
1-1/2 | 48,000 | 10"/54" | 15"/36" | 5600 | 14 GPM | 4 GPM | Metered | | 130 lbs |
1 | 32,000 | 10"/35" | 15"/36" | 5600 | 11 GPM | 3 GPM | Metered | | 100 lbs |
2-1/2 | 80,000 | 14"/50" | 18"/33" | 5600 | 23 GPM | 6 GPM | Clocked | | 190 lbs |
2 | 64,000 | 12"/52" | 18"/33" | 5600 | 18 GPM | 5 GPM | Clocked | | 160 lbs |
1-1/2 | 48,000 | 10"/54" | 15"/36" | 5600 | 14 GPM | 4 GPM | Clocked | | 130 lbs |
1 | 32,000 | 10"/35" | 15"/36" | 5600 | 11 GPM | 3 GPM | Clocked | | 100 lbs |
2.5 cf or 2 cf model for high hardness and a large household
1.5 cf for moderate hardness and a medium size household
1 cf model for low hardness and a small household
Numerical lookup table can also figure out cubic foot for hardness and household
Above is complete softener assembly with 3/4" or 1" plastic yoke, but stainless bypass is extra, please call
Chrome jacket for resin tank available, better aesthetics, call 888-928-3794 for prices
Salts replacement: Locally available, price varies Top
Saltless conditioner: revolutionary new scale prevention technology, treats hard water without salt, no electricity
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Next-Scale-Stop (NSS) conditioner, certified to NSF/ANSI-61 water safety standard
Also certified to the more rigorous German safety standard DVGW-512
No salt used, eco-friendly, better for your health, successfully fielded since 2004
Corrals Ca++ and Mg++ ions which clog up water heater, dish washer, pipes
Extremely efficient - 5 seconds contact time regardless of hardness, up to 75 grains
Ion exchange resin in conventional salt-based softener requires 90 seconds
NSS max service flow rate is 4 gallons per minute (gpm) per 1 litre of media
Hardness, household size and desired flow rate determine the optimum unit size
Long lasting media, preserves beneficial minerals, no slimy soft-water feel
Factory direct from Next Filtration Technology, a top-name brand
Unit price is made up for by no salt, no electricity, simple plumbing
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Installation ready complete uni
Model | Max service flow | Tank diam/height | Price | Shipping carton size | Shipping weight |
1665R | 75 gpm | 16"/65" | | 18"x18"x74" | 90 lbs |
1465R | 50 gpm | 14"/65" | | 16"x16"x74" | 74 lbs |
1252R | 30 gpm | 12"/52" | | 16"x14"x64" | 43 lbs |
1054R | 20 gpm | 10"/54" | | 11"x11"x59" | 35 lbs |
0948R | 16 gpm | 9"/48" | | 11"x11"x59" | 29 lbs |
0844R | 12 gpm | 8"/44" | | 11"x11"x51" | 25 lbs |
0744R | 10 gpm | 7"/44" | | 11"x11"x51" | 22 lbs |
Shipping from Buena Park, CA 90620 is additional
Incoming water must fall within pH 6.5-8.5, hardness 75 grains (1300 ppm CaCO3) max, temp 41-140°F (5-60°C)
Chlorine <3ppm, iron <0.3 mg/l, manganese <0.05 mg/l, copper <1.3 mg/l, remove dirt, oil, H2S and polyphosphates
NSS does not soften water, but solves scaling/residue problem caused by hard water
Your existing softener can be converted, replace softener resin with NSS, replace softener valve, throw away salt tank
Media replacement: $160 per litre (4 gpm flow per litre), original media should last 3-5 years
Chrome jacket for NSS polymer tank available, better aesthetics, call 888-928-3794 for prices Top
Reverse Osmosis Filter for Whole House Water - Sometimes you have to go all out!
Whole house RO filter implementation - not to be entered lightly, unadvisedly - click for typical installation diagram
Rather than the expensive RO option, we encourage home owners to first look for non-RO type special purpose filters, described above, to accomplish specific filtration objectives. In addition to its costliness, RO process is rate limited and also has to throw out, on average, about half the incoming water as dirty waste. Because RO makes water slowly, you have to store the processed water in a storage tank big enough to meet the peak demand of a household. Then GPD rating of the unit has to be large enough to refill the tank before the next peak demand period arrives.
A whole house RO system consists of four functional blocks. 1) Pretreatment filters, 2) RO, 3) atmospheric storage tank plus repressurization pump, and 4) post treatment filters. Pretreatment and RO are explained below. In a modern house where sinks, showers and baths are separately plumbed from toilets and such, a bladder type tank or two may substitute for a large open tank and a repressurization pump.
Some people describe the raw RO water as acrid, tangy or sharp tasting. In fact, depending on the supply water chemistry, the RO water can be acidic. The post treatment stage 4) can consist of an acid neutralizer, carbon "polishing" filter or two, sometimes followed by a UV filter. Neutralizer if permeate is excessivly acidic, carbon rounds off the taste, and UV for organisms that may potentially grow in the post-RO storage tank/pump, particularly in warmer climate.
Source Water Preparation - to prevent premature membrane fouling, to increase pure water to waste water ratio
Large RO membranes are expensive. Thus source water is often pretreated so as to reduce workload for the membrane. The cleaner the water, the longer the membranes last. We then can set the pure water recovery rate that much higher, thus saving on water bills.
Source water quality requirements
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Water temp: 85F max
- TDS: 2,000 ppm max
- Iron tolerance: 0.5 ppm max
- Hydrogen sulfide: must be removed
- Silica tolerance: less than 125 ppm, antiscalant should be considered for over 75 ppm
- Turbidity: must be removed
- Hardness: over 10 gpg should be softened
- pH range: 3-11
A source water analysis is recommended before considering a large GPD RO system.
We can help you pretreat water for most conditions. The throughput capacity of the pretreatment equipment must be sufficient to adequately filter the sum total of the permeate flow (RO GPD rating) and the anticipated waste water flow into drain.
At lower source water temperatures of less than 77F (25C), actual RO production will be less than the system GPD rating. To estimate the actual production, GPD rating has to be divided by 1.19 at 68F (20C), by 1.47 at 59F (15C), by 1.89 at 50F (10C), by 2.58 at 41F (5C). The temperature derating effect must be included in your system design consideration.
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Com II Model Reverse Osmosis 800, 450, 250 and 150 GPD
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What it does
Sits in the basement (at point of entry) and treats the whole house water
Works with chlorinated municipal water or well water
Our best seller, work horse, most iterated design/parts selection for reliability
Prefilters: Slimline (2-1/4" dia x 20" long) sediment and carbon
TFC membrane at 200 psi, 95-99% salt rejection
One year factory warranty
Stainless membrane housing, powder-coated steel bracket
High pressure brass fittings and nylon tubing
Inlet/outlet pre-filter gauges, liquid filled system gauge
Additional pressure gauge for sealed storage tank
Adjustable waste/recycle flow controls, optimum water recovery
Storage tank pressure switch, low pressure safety switch
Feed water solenoid valve, 1/2 hp motor (3/4 hp for 800 GPD), rotary vane pump
Straightforward installation, simple operation
compact design with highest quality US components, needs minimal space
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Dimensions
Model | Minimum GPD | Membrane | Piping inlet / waste / prod | Size/weight |
Com II-4 | 850 | 4" dia x 21" long, 1 each | 1/2" 3/8" 3/8" | 14" x 16" x 30" tall, 95 lbs |
Com II-3 | 475 | 4" dia x 14" long, 1 each | 3/8" 3/8" 3/8" | 14" x 16" x 30" tall, 92 lbs |
Com II-2 | 275 | 2.5" dia x 21" long, 1 each | 3/8" 3/8" 3/8" | 14" x 16" x 30" tall, 88 lbs |
Com II-1 | 175 | 2.5" dia x 14" long, 1 each | 3/8" 3/8" 3/8" | 14" x 16" x 30" tall, 85 lbs |
Source water pre-treatment
Additional pre-treatment should be provided in front of the 800 and 450 GPD units for membrane protection
The built-in pre-filtration is sufficient for the 250 and 150 GPD models
Available options at added cost
Stainless pump, stainless membrane housing, stainless needle valves, product and waste flow meters
Manual membrane chamber flush, 220 volt pump motor, float switch for atmospheric tank, pretreatments
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Com I Model Reverse Osmosis 800, 450, 250 and 150 GPD
What it does
Sits at point of entry (basement), treats the whole house water
Works with chlorinated municipal water or well water
Two Big Blue Short (10" long) carbons, one sediment prefilters
TFC RO membrane operating at 200 psi, 95-99% salt rejection
One year factory warranty
Water storage tank and repressurization pump are not included
Straightforward installation, simple operation
Compact design with highest quality US components
Inlet/outlet pre-filter gauges, liquid filled system gauge
Storage tank pressure switch, low pressure safety switch
Feed water solenoid valve, 1/2 hp motor, rotary vane pump
Fixed waste and recycle flow controls, optimum water recovery
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Dimensions
Model | Minimum GPD | Membrane | Piping inlet / waste / prod | Size/weight |
Com I-4 | 900 | 4" dia x 21" long, 1 each | 1/2" 3/8" 3/8" | 26" x 16" x 18" tall, 74 lbs |
Com I-3 | 500 | 4" dia x 14" long, 1 each | 3/8" 3/8" 3/8" | 21" x 16" x 18" tall, 72 lbs |
Com I-2 | 275 | 2.5" dia x 21" long, 1 each | 3/8" 3/8" 3/8" | 26" x 16" x 18" tall, 68 lbs |
Com I-1 | 175 | 2.5" dia x 14" long, 1 each | 3/8" 3/8" 3/8" | 21" x 16" x 18" tall, 65 lbs |
Source water pre-treatment
Additional pre-treatment should be provided in front of the 800 and 450 GPD units for membrane protection
The built-in pre-filtration is sufficient for the 250 and 150 GPD models
Available options at added cost
Stainless pump, stainless membrane housing, fiberglass panel for wall mount, adjustable waste valve
Manual membrane chamber flush, 220 volt pump motor, float switch for atmospheric tank, pretreatments
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All important water tests - choose the system you need
We Assist You in Testing Your Water - find certified and independent test lab near you
- Rigorous tests should be done by a lab and NOT BY SELLERS OF WATER FILTERS
- Fill the sterilized jars, fill out a form, and mail the samples and form to ETR Labs, Inc.
- Our experienced staff will assist you in reading the water test results, free of charge
- We can recommend optimum and economical purification strategy(ies), no obligation to buy from us
- Environmental Testing & Research Labs, Inc., 29 Fuller Street, Leominster, MA 01453
Tel: (800)344-9977, web:www.etrlabs.com, is one of the EPA approved labs we use
- You deal directly with ETR Labs for the test level you want, they will talk to you
- Just so you know, we do not receive rebates, referral bonus, anything for these tests
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PureWaterExpress.Com (we speak English and Japanese) P.O. Box 47, Harvard, MA 01451, founded in 1984, same location since 888-928-3794 within US, 978-456-8372 from outside US
E-mail sales@purewaterexpress.com
Copyright 1999: Prosperity Management, Inc., Massachusetts Corporation
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