why does that pipe have to be so long mate and go down then up?
just to collect rain water!!!surely you arent that hard up you cant turn on your tap!!!as if we need to save water at the mo!!
So you've packed resin into the white pipes, or partly. How do you stop it washing out into the green bin?
Looks very clever, I'd guess the resin is heavier than water so only fills the U. or else some sort of filter fitted either end of the u to stop it being washed out.Is the black pipe feeding it able to be disconected to allow for the right type of rain?
i was thinking of putting some tights either side of the resin to act as filters