Hi guys
My name is Tonino and I'm from Italy
I built an overflow like beaslbob project; but now I have a question for you: I will use it in a freshwater aquarium with many plants and the problem is that after a while of hours of working the inside of tubes will be colonized from algae, microorganisms and dirty particles so I'm thinking at this issue: the suction tube to start the overflow, that is linked to a venturi pump, could be blocked!
So how do you have solved this issue?
I thought that I can use a larger tube or a T link instead of 90° and use the "tower" of T to suck-out air from siphon.
What do you think about these solutions?