[PoggiPJ]

I agree with ALL of you. I like that design Steve. The problem with mine is that they were glued in place, impossible to maintain. There was so much growth on them that they failed. My issue is that the basement tank refugium also collects water draining from the upstairs tank. It was not designed with adequate capacity to handle that volume.

So, I have now added an overflow bulkhead into the wall of my basement refugium. It feeds into a hidden rubbermaid tub that has a water sensing sump pump from Lowes. Once the electricity is restored, if the pump detects water in the tub it is pumped back into the basement refugium.

I also replaced my vulnerable Dolphin Ampmaster with a submersible PondMaster.. just in case!

Thank you all for your suggestions.