two displays, 3 surges, 2 sumps, 2 refugiums (or how to flood a basement?)

[Dolf]

Sorry Mr.OM;
I did not time it- but just around 2:00 ( the tap was not on full. The stand is now built, so very soon I will know what it needs to "flush." I am going to run the surges pumping straight from my display tank for the first tests. I still need to do a lot of plumbing before it is actually "done."

Pictures of the stand for two of the surges (the celing in the basement is lower than I would like.)