Installing a first flush pipe is not required but but it will protect your cistern from the “first” dirty water that flows off the roof.
Installing a first flush pipe is not required but but it will protect your cistern from the “first” dirty water that flows off the roof. This is critical only if the water is to be potable.
Complete set up – you can see the gutter, the first flush pipe, the intake pipe, and overflow outlet. The intake and overflow pipes are protected by screens to keep insects out