Protect your rainwater quality in your tank by diverting the most contaminated water that washes off your roof in the first few millimetres of rainfall with a First Flush Diverter. Our 4" First Flush Diverter Kit provides you with the pieces you need to build a great first flush system. You just need the 4" SCH40 PVC Pipc from your local hardware store.
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Prevents organic and inorganic fine particles from your roof from entering your rainwater system.
Slow Release valve automatically drains your chamber over time to prepare you for the next rainfall event.
The system is easily customized by adding the length of pipe to suit your first flush requirements. If you want to diverter more rainwater, just make your diverter chamber longer.
We include all the fittings you need to set the system up. Just add the 3" SCH40 pipe to create the storage chamber.
QTY 2 - Pipe & Wall Brackets
QTY 1 - Tee Junction Fitting
QTY 1 - Screw Cap, Hose Connector & Socket
QTY 1 - Sealing Ball
QTY 1 - Ball Seat Fitting
QTY 1 - Plastic Filter Screen
QTY 1 - Flow Control Gaskets
SCH40 PVC Pipe, Tape Measure, Marker Pen, Saw, PVC Pipe Sealant, Primer, Screws, Drill or Screwdriver
It depends on how much pollution is over your collection area. Does your roof or collection area have Minimal Pollution or Substantial Pollution? Minimal Pollution being in an open field, no trees, no bird droppings, clean environment. Substantial Pollution being Trees over head (maybe pollen producing), leaves, stick, acorns, shingle pebbles, bird droppings, various animal matter, and dead insects.
If Minimal Pollution - Divert 0.0125 Gallons per SQFT of collection space. Example: 1000 SQFT x 0.0125 = 12.5 gallons
If Substantial Pollution - Divert 0.05 Gallons per SQFT of collection space. Example: 500 SQFT x 0.05 = 25 gallons
It is important to ensure that your first flush diverter outlet remains clear of any debris. If your outlet becomes clogged, the chamber will not empty and the first flush of water will not be diverted when it rains.
To ensure the flow of water through your diverter's outlet, periodically unscrew the the bottom outlet to allow debris to fall out. If the diversion chamber is full of water, take care of it as it empties. Remove the hose connector, flow control washer, and filter screen and wash it off with a hose. Check the flow control washer for any blockages and remove and clean as necessary.
For best results and minimal maintenance, we recommend installing rain heads such as our Lear Eater Advanced on all of your downpipes to limit the volume and number of leaves and debris that reach your first flush diverter system.
Lake City, PA 16423
39021
TankAndBarell.com
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