I saw someone else today posted a controller board mount on sale, which had me venture over to Marine Depot. I saw they are liquidating a lot of their stock for cheap. I was able to get a bunch of things I needed/wanted at 40% off. Loads of their RODI systems are on sale. There is a good deal on the Hanna checker kit I would have jumped on if I didn't already have them all, and lots of other things worth looking at. They also have stuff for freshwater tanks that I was able to use for my other system. Gave me a good excuse to get some 10 micron socks and some Lanthanum Chloride and try that out versus GFO. Good luck explaining these purchases to the SO!