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The Rainwater Harvesting Community :: HarvestH2O.com
First Flush Devices - A Review by Doug Pushard What is a First Flush? Is there one perfect type of First Flush device? Where do I put a First Flush on my rainwater catchment system? First Flush or Rain Diverters, as the name implies, flush off the ...
harvesth2o.com

Components of a Rainwater Harvesting System
Source: National Building Code 5. First-flushing A first flush device is a valve that ensures that runoff from the first spell of rain is flushed ...
www.rainwaterharvesting.org

Maintenance of a Rainwater Harvesting System
Further, a first-flush device should be provided in the conduit before it connects to the ... system design, sound operation and maintenance and use of first flush devices and treatment. Treatment is mainly appropriate as a remedial ... plastic bags and paper pieces. A coarse filter and/or foul flush device should be fitted to intercept water before it enters the ...
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Rainwater Harvesting FAQ :: HarvestH2O.com
Most irrigation stores sell inline sprinkler filters. This is a simple device that screws into the lines prior to your irrigation system and cleans out the large ... the gutters and water clean. And of course put in screens on gutters, a first flush device and filtration system to clean the water if it is to be used for potable ...
harvesth2o.com

WELL - Resource Centre Network for Water, Sanitation and Environmental Health
USE EXAMPLES OF RWH RAINWATER COLLECTION TECHNOLOGIES FOR RWH ROOFTOP HARVESTING GUTTERS AND DOWNPIPES FIRST FLUSH AND FILTER SCREENS TANKS OR RESERVOIRS DESIGNING A SYSTEM PLANNING AND MANAGEMENT EFFECTS AND IMPACTS ... and have in some cases reduced confidence in RWHS. A cistern requires a water lifting device, e.g. a handpump. Tank size varies depending on the rainfall pattern and the user ...
www.lboro.ac.uk

Greywater Recycling for toilet use.html
Co. Back to index Reliability and Maintenance The greywater recycling device now exists in 7 units in Germany designed and erected by ... -laboratory conditions adds to 30 years (Feb. 2000). As the device is self-cleaning and the sludge is precipitated automatically a maintenance ... water used for body hygiene than for toilet flush in a WC. Therefore toilet flush water can be almost totally replaced by ...
www.reinerhildebrand.de

History of Public Toilets plumbing world
England. In 1738 JF Brondel introduced the valve type flush toilet. Alexander Cummings further improved the technology and gave use a better device in 1775. In Cumming's design water was perennially ... the world was yet to witness further technological developments. In 1870, SS Helior invented the flush type toilet, called optims - an improvement over Blummer's design. From 1880 onwards, however, the ...
plumbingworld.com

Terms Beginning With "I"
In-Situ Oxidation: Technology that oxidizes contaminants dissolved ... not active against target pests. Not all inert ingredients are innocuous. Inertial Separator: A device that uses centrifugal force to separate waste particles. Infectious Agent: Any organism, such as ...
epa.gov

Home Page | Lead in DC Drinking Water | US EPA
Flush until the water is as ... but recommends that if you choose to use such a device, look for one certified by an independent testing organization, such ... must be installed, operated, and maintained according to manufacturers' instructions. The device should be certified to remove the contaminant that you are ...
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Sourcebook Efficient Irrigation
A soil moisture sensor. Unlike the rain shut-off device, the soil moisture sensor actually measures soil moisture, and overrides programmed irrigation when the soil ... regulator may be necessary. Filters to remove sediment should be installed at the water source. Flush caps should be installed at the ends of the drip supply lines so that the ...
greenbuilder.com