ChatterBank2 mins ago
Drizzling rain doesn't fill water butt
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WendyS - the trap will operate when there is sufficient flow into the downpipe - check the d/pipe isn't blocked above the trap by a quick squirt from a hose or as above a buscket onrto the gutter that feeds the d/pipe - (see if you can avoid washing dead leaves into the pipe of course)
If there is not sufficient flow, the water that trickles down will only pass the pipe feeding the butt as it needs to have a bit more than just drizzle to really work at its best. Chould be raining tonight, so see what happens next...