Backflow Prevention Input Needed

[bassman]

Originally Posted by untamed

If your siphon break works properly, it should stop the siphon before the tank drains down to the level of the return pipes. Can your sump handle the water if they actually do drain down? I wouldn't want to be dependent on a siphon break to save me.

You may need to experiment a bit with how large a hole you'll need to create the siphon break. A large siphon needs a pretty large hole to stop it, otherwise it just behaves like a venturi!

Have you considered that you might not want that much flow through your sump?

The siphon break would be very large, it would actually be another take off from which I would take the line down and into the overflow chamber just above the water line.

I am building a pretty large sump, which I could expand to make room for all the water in my display thus stopping a flood. However I am more concerened about all my livestock sitting in a drained tank everytime the power goes out.

I didn't understand your last question about too much flow through my sump, what did you mean?