Check Valves

[quote=jpdutton;340890] ... to use Loc Line from the return bulkhead and bent the loc line in a shape that brought the spout closer to the water surface, so as soon as the water dropped slightly the spout of the loc line would get air to break the siphon.QUOTE]

Nice thought.
As you are the third person who suggested me doing that, I think I'll make some modification to my system soon. Thanks
I agree with the thought: Less worries is more enjoyable !

Thanks,