[slief]

Originally Posted by DamonG

This is what I came up with from the AVAST reactor I have. Will this work?

I would have the calcium reactor feed the secondary reactor through the bottom so the effluent exits out the top of the 2nd reactor before heading to the tank. Like you, my calcium reactor uses the 1/4" tubing/ I added the John Guest fittings to the 2nd reactor so all the lines were the same. In fact, I even converted my calcium reactor over to the 1/4" RODI type tuning when I set it up by switching the original fittings to John Guest style fittings. One bit of advice.. Use Teflon paste and not Teflon tape on all the threaded fitting on both reactors so you don't have to chase down any leaks or sources for air being drawn into the reactors which is a common problem.