Not enough flow and they won't start, too much and they don't want to break. so it is a good idea to follow the size recommendations carefully. most would recommend a bell size of 3" for a 1 1/2" stand pipe and i would keep it about 2" taller than the stand pipe. for more detailed info try doing a search for "affnan siphon".. Dan's system from texas "bell-siphon". the design works very well, is it the pump i use is too strong the siphon won't stop?. longest drain pipe length for a bell siphon (self.aquaponics) harder for the bell to stop as air has to into the top of the bell but that won't break.. Forgive me if this has already been coverd 10000 times, but i cannot seem to keep my bell siphons from running continuously. when the siphon starts, you can see the water level drop rapidly, however, once it gets to the air holes it just gurgles and the siphon will not break. i know this is not the issue. 1. the height of the stand pipe cap. tried caping just above the stand pipe, and have.
Smoky mountain aquaponics manufactures bell siphons for 4.5", 6", 8", 10", and 12" media beds. trusted by aquaponics professionals and enthusiasts alike, these bells siphons are a reliable choice for you system. read reviews on amazon page contents [ show]. Not enough flow and you’ll get a trickle, too much flow and the siphon won’t break. if you don’t have an adapter on the top of your inner pipe, that seems to help (an adapter is, for example, a fitting that goes from 1 1/2” to 2”). also need to make sure there’s enough water flow from the outer pipe to the inner pipe. level 1.