I'm still undecided about how to plumb the UV. Will be nice to have some way to put the UV inline with the return and add a flow meter. Alternatively use a standalone pump and recirculate the water in the return section of the sump.Are you plumbing in your UV to the overflow coming down into the sump, or just going to run it with a pump to and from the sump? I have a Red Sea S 550, and do not want to mess with the pre-plumbing or risk issues with the warranty. Thinking I'll eventually add a UV like and just run it with a pump in/from the sump.
Also, is your tank blocking your door?
Good catch on the leak! Following along.