How to plumb calcium reactor off sump return

[Ryanerickson]

I tried doing this same thing run my ca reactor with my return I only used the 1/4 jg valve to controll flow. It did not work just no control either to fast or too slow flow I would assume the larger valve would help with that issue. By the way it sure looks like a ball valve not gate. I run mine off a syphon now works good for me more control it still not perfect Peristaltic pump is idea but more money.