Plumbing/Siphon/Water Disaster Avoidance Advice

[mark]

Might not help your livestock but a really really big sump would keep the water off the floor .

Could also internally to the tank raise the height of the return nozzle so any water drained back would be manageable.

[kwirky]

what about attaching an airline as a siphone break (or two for safety) and putting a check valve on the airline so the air only flows one direction. fixes the spray from pump operation...

[MikeP]

You drilled it yourself? Why not just plug that hole and drill one where you want? Or plug that one and run the return line over the glass?

Just a thought