Rain Harvesting Pty First Flush Diverter for Post or Wall Mounting

Rain Harvesting Pty  First Flush Diverter for Post or Wall Mounting
Rain Harvesting Pty  First Flush Diverter for Post or Wall Mounting
Rain Harvesting Pty  First Flush Diverter for Post or Wall Mounting

The Rain Harvesting first flush diverter treats large volumes of water, so in many cases one unit is sufficient. The diverters can be mounted on a wall, post or stand, and can be adapted to suit a wide range of applications.  They receive single or multiple pipes coming from the roof.

Our Price$129.95
List Price$159.95
SKUWDPW99


Currently in stock


Product Description:

The benefit of one larger unit is that it can be easier to maintain than a series of smaller diverters installed at each downpipe.

The first flush of water from the roof can contain amounts of bacteria from decomposed insects, bird and animal droppings and concentrated tannic acid. It may also contain pollen, water borne heavy metals and chemical residues, all of which are undesirable elements to have in a water storage system. Rain Harvesting's range of First Flush Water Diverters (or Roof Washers) capture the first most contaminated rainwater from the roof and gutters, automatically diverting the subsequent cleaner rainwater to the storage tank.

Diverts approximately 6 gallons per foot of 12" pipe.

Requires a section of 12" PVC pipe which can be purchased online or at a local plumbing supply.

 

Diversion Recommendations for the Roof

Minimal Pollution: divert 0.0125 gallons per square foot of roof area
Open field, no trees, no bird droppings, clean environment

Substantial Pollution: divert 0.05 gallons per square foot of roof area
Leaves and debris, bird droppings, various animal matter, e.g. dead insects, lizards, etc.


Example for a minimal polluted roof of 1,000 square feet:
1000 square feet X 0.0125 = 12.5 gallons to be diverted

Example for a heavily polluted roof of 1000 square feet:
1000 square feet X 0.05 = 50 gallons to be diverted

PVC Pipe Specifications

3" Downspout diverters: Use 3" Schedule 40 PVC
(not sewer and drain pipe)
Storage capacity: Each 3 foot section of 3" PVC holds approximately 1.1 gallons of water (0.3840341 gal/ft)

4" Downspout diverters: Use 4" Schedule 40 PVC
(not sewer and drain pipe)
Storage capacity: Each 3 foot length of 4" PVC holds approximately 2 gallons of water. (0.661312 gal/ft)

12" First flush diverters: Use 12" Schedule 40 PVC
Storage capacity: Each foot of 12" PVC holds approximately 6 gallons of water. (5.81463286 gal/ft)

 

Product Documents:


 

TrustPilot Product Reviews
Related products you may find useful:

 
Downspout Diverter Stainless Steel Filter
Upgrade component for the Rain Harvesting First Flush Water Diverters. Fits models WDDS98, WDDS99, WDIG and WDPW. Stainless Steel Filter provides extra confidence with additional filtration of fine sediments and pollutants to ensure the slow release control valve does not block. Our Price: $12.95

click to see more

 
Upgrade component for the Rain Harvesting First Flush Water Diverters. Fits models WDDS98, WDDS99, WDIG and WDPW. Stainless Steel Filter provides extra confidence with additional filtration of fine sediments and pollutants to ensure the slow release control valve does not block.
Our Price: $12.95

click to see more

 
PVC Diverter 12" Diameter Chamber Section, 3 feet or 4 feet long
View

Three foot section of 12" PVC used with the RainHarvesting First Flush Diverters model numbers WDIG99 or WDPW99. Each foot stores 6 gallons of first flush water.

click to see more

 
 
Replacement Black Ball for 4" and 12" First Flush Filters
Replacement black ball for Rainharvesting 4" and 12" first flush filters.
Free Shipping
Our Price: $9.95
List Price: $14.95

click to see more

 
Replacement black ball for Rainharvesting 4" and 12" first flush filters.
Free Shipping
Our Price: $9.95
List Price: $14.95

click to see more

Related products you may find useful:

 
Downspout Diverter Stainless Steel Filter
Upgrade component for the Rain Harvesting First Flush Water Diverters. Fits models WDDS98, WDDS99, WDIG and WDPW. Stainless Steel Filter provides extra confidence with additional filtration of fine sediments and pollutants to ensure the slow release control valve does not block. Our Price: $12.95

click to see more

 
Upgrade component for the Rain Harvesting First Flush Water Diverters. Fits models WDDS98, WDDS99, WDIG and WDPW. Stainless Steel Filter provides extra confidence with additional filtration of fine sediments and pollutants to ensure the slow release control valve does not block.
Our Price: $12.95

click to see more

 
PVC Diverter 12" Diameter Chamber Section, 3 feet or 4 feet long
View

Three foot section of 12" PVC used with the RainHarvesting First Flush Diverters model numbers WDIG99 or WDPW99. Each foot stores 6 gallons of first flush water.

click to see more

 
 
Replacement Black Ball for 4" and 12" First Flush Filters
Replacement black ball for Rainharvesting 4" and 12" first flush filters.
Free Shipping
Our Price: $9.95
List Price: $14.95

click to see more

 
Replacement black ball for Rainharvesting 4" and 12" first flush filters.
Free Shipping
Our Price: $9.95
List Price: $14.95

click to see more