bit more of the rock wall done again - bit annoyed with myself as i have just ordered 60kg of rock and reef bones from Germany but i was so keen to get on i used some old stuff i had lying around....just hope the german stuff isnt SO good it makes me want to rip this down! Its a bit "big lumps of rock"....but it may work.
Started of with a down tube - this will stick 1" above the water line and is where my return flow enters.....sends water to the bottom, stirs up behind the rock and no syphon issues as the return pipe just pokes into the down pipe which is a far larger size.
Cable tied on the rock - this is where the wall starts to go round the weir box so it needs to be a bit "fuller" than the other bits so you cant see past/through it to the weir box itself.
Foamed!
Cut off excess foam, epoxy the foam and cover in sand in the morning
