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Ah the bell siphon, I'm a total fraud bought mine lol. I have one bed running on a bell siphon it has an extra air tube to make it stop really reliable. Like this video


The other bed is just constantly flooded. Works as well so far.

I just made a standard one without the air tube by I'm contemplating adding one. I messed up and drilled holes in the tube that fits over the stand pipe so it wasn't siphoning properly.
I would have a constantly flooded bed but my setup is outside and I do t want to promote algae growth. What do you have growing in that bed?

two tomato plants, a bell peper, cervil, chives, borage, mint and water cress. You can lower the water level for established plants. Think kratky method.

Cool, thanks for the advice. Sorry for the long gap between replying. Work has been taxing and I like to periodically unplug from social media for a while.
The good ole kratky method! This was my first experiment with hydroponics. It turned out pretty good. The resourcefulness of plants is amazing.

Any time buddy. I jumped into Aquaponics and just now I am learning about basic hydroponics. Funny how that goes.