Are you able to guesstimate the roof area draining to this downpipe?
Using google maps and disregarding the pitch of the roof, its about 95m2
I do clean the wet system…

thanks for your help:
The 2 tanks are connected to each other and then a single pipe to the pump . There are isolation valves on each tank. We normally draw…

Lots of good information on here.. I need some advice on updating my system. Here's what Ive got
A 50 year old house on the fringe of Sydney. We don't have…