Installation of First Flush on catchment tank

[Les C]

You put a threaded end on the pipe with a screw cap. When a significant rainfall has been going, unscrew the cap and let the water and debris out, recap. Before you wash your roof, unscrew the cap to let the dirty wash water run out. This requires a bit more monitoring, as I said, but if you go with the holes and they plug up, you're in the same boat. Royall's bag filter may be another way to deal with this, but it would seem to let too much water out before the pressure can build to fill the tank. I don't think I'm picturing what his setup looks like.

Edited by - Les C on 06/26/2007 22:50:11

Edited by - Les C on 06/26/2007 22:51:00