I currently have running 1 mag 12 for my chiller, 1 mag 18 that's returning water and running my GFO, and 1 mag 9.5 returning water.
I'm transferring loads of heat because of this. I'm looking into switching to 1 strong external pump and manifolding it to run everything.
What do I need to do this?
Do I have to drill the side of my Sump?
Any other way of judging how strong of a pump I need, It's my understanding that they handle head pressure better than my submerged pumps so an external doesn't necessarily need to be and strong to pull off the same results.
Please help with your experiences!