Catchment Sensitive Farming: Practical Tips

Practical Tip: Recycling rainwater

Rainwater storage tanks

Above ground storage tanks should be suitably located on hard standing or concrete according to manufacturers instructions.

Typical underground water storage tanks are made from glass reinforced plastic (GRP) and pre-cast concrete. GRP tanks should conform to BS 4994 Design and construction of vessels and storage tanks in reinforced plastic, or other relevant or equivalent standards. Installation should follow manufacturers’ instructions.

These tanks will not be suitable in ground with a high water table unless further structural work is undertaken to avoid such tanks from floating. Pre-cast concrete tanks should conform to BS EN 1917 Concrete manholes and inspection chambers, or other relevant or equivalent standards. Installation should follow manufacturers’ instructions.  


Source: West Country Rivers Trust

First flush rainwater diverters

These can be used for potentially contaminated roof water on individual rainwater downpipes, or as wall-mounted diverters or as larger stand-alone diverters depending on the volumes to be treated. Such diverters can be used in conjunction with water storage tanks. Diverted contaminated water should not enter a clean water drain or discharge to ditches or watercourses.

Downpipe filters

These can be used to keep leaves, debris and other contaminants out of diverters, clean water drains and water storage tanks.


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