MOD II would work quite well and in fact it will be almost identical to a toilet being flushed. The siphon would be quite strong once the flow starts to go over. If you don't put a strainer on your bulkhead, i can't see too many things that can block up a bulkhead other than a plastic bag or BIG fish.
Quote:
Originally Posted by untamed
That was such fun that I designed another one. This is one that could be done with a single "through the bottom" bulkhead overflow drain. It is a bit wild, but I do think it would work and be safe.
(Mind you...if something blocks your only bulkhead, you've got a problem whether you've done this mod or not!)
Untamed Mod II:
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