Single-Family ReWater Automatic Filter System
This model RWAF is our most popular single-family filter system due to its convenient automatically backwashing sand filter. It integrates seamlessly with the irrigation side of our system.
This filter system satisfies California’s 2016 code and most other state codes. It’s typically used at a home or small apartment building that’s completely plumbed for greywater use. Most jurisdictions prefer this system because it has a reduced pressure principle backflow prevention device (RP) for the water supply that can’t be easily cross connected.
See ReWater’s Owner’s Manual for construction details.
Will it be inspected by the City of Los Angeles or Los Angeles County? If yes, click here because you will need a 2-pump/2 tank system.
The second pump and second tank are needed to hold and repressurize the supplemental water used for cleaning the sand filter and for supplemental irrigation. A water leveler is also included to keep this second tank full.
Do you plan to integrate rain harvesting into your greywater system? If yes, click here because you will need a 2-pump relay junction box, a second pump, a very large underground tank to hold the rain, and a water leveler that provides supplemental water when the tank runs dry. The option shown includes a 20,000 gallon tank but countless other sizes are available. Smaller tanks cost less but cost more per-gallon.
Tank
You must choose one.
Tanks should be sized for your anticipated greywater “surge”, which is when all your connected greywater sources are producing water at once. 1-3 people living in the home need the 70 gallon tank. 4-10 people need the 110 gallon tank. Larger tanks are available on request.
A surge tank captures greywater only long enough for it to be pumped through our sand filter and used in your landscape via our high-volume irrigation emitters before the tank overflows to the sewer.
Trying to store greywater results in buying an expensive unwieldy storage tank that lets greywater become septic.
Polyethylene Surge Tank 70 gallon w/ gasket material, buriable, and Structural Poly Bolt-on HD Lid with 6 SS Screws. City of Los Angeles Research Report #5311.
Polyethylene Surge Tank 110 gallon w/ gasket material, buriable, and Fiberglass Bolt-on HD Lid with 8 SS Screws. City of Los Angeles Research Report #5311.
Filter
21” filter vessel wrapped fiberglass. Outdoor rated. NSF approved.
Pump
120 VAC 1/2 hp 36 psi ultra high-head effluent pump. UL listed.
200 VAC 1 hp ultra high-head efficient pump. UL listed.
208 VAC 1.5 hp high-head efficient pump
230 VAC 1.5 hp high-head efficient pump
Standard Components
1 x BuIkhead Adapters, 2 @ 4”, 2 @ 2”, 2 @ 1/2” +$149.00
1 x 2” Discharge Pipe w/ male adapter, & sweep +$40.00
1 x 3-Way 2” Tee Valve w/ 24 VAC actuator +$769.00
1 x Filter Vessel Pipe Adapter +$129.00
1 x 1.5” Solenoid Valve nylon for backwash +$235.00
1 x Pressure Regulator for 1.5″ backwash valve + $139.00
1 x 2” PVC Swing Check Valve +$95.00
1 x 2″ Springcheck Valve + $93.00
1 x Float Switch w/20” Cable +$135.00
1 x 3” Backflow Valve w/viewing port +$169.00
1 x 1.5” Solenoid Valve for irrigation supplement +$235.00
1 x Pressure Regulator for 1.5” supplement valve +$139.00
1 x 1.5” Reduced Pressure Principle Device +$1,589.00
1 x Owner’s Operation & Design Manual (download) +$0.00
1 x Caution, “Nonpotable Water. Do Not Drink” stickers 25 +$35.00
1 x 14” Plastic Ties for securing pump & float wires, 3 +$8.00
Total
$3959