I have one of your bell syphons and am in the process of setting up a system for my Library at school. My question is: the syphon I recieved only has two pieces, can I use a washer for the space between the top container and the lid it sits on or is there a better method?
What size should I get for 29 gallon tank?
Is there a retail store I can pick this up at or is it by online only?