Thanks, RS. I'm not even sure if the water is going to the tank regularly because of the way it is set up. I worry that it's bypassing the tank entirely. The pump cuts on immediately every time water is turned on and shuts off shortly after it is turned off.
Thanks, Valveman. Having 1" will actually simplify things. I didn't realize the inside was female threaded and outside was male threaded (I guess I didn't look at pics closely enough). That will make things easier. I can find male threaded SS pipes in 1". I was thinking they had to be 1-1/4". I wonder if my 1-1/4" stainless steel flex hose can hook to the manifold. I'll have to revise my plans for options.
I think I'd rather have my tank on top going upward.
I got an e-mail from CSV customer service saying I could use the CSV125 set to 40psi since I have a 30/50 switch, but they said I could go up to 40/60. Also said I could re-use my existing pressure switch and mount it closer to the tank.
I wanted to go with an AO Smith tank because I have an AO Smith goulds pump (plus, that's what is available locally).
I saw this picture for the 125 on the CSV website and I like this setup, but I would want a cross on top to mount other things. I do like the idea of the manifold though. I could add a short pipe to the side outlets to hold things like pressure switches, gauge, spigot, pressure relief. I just need to figure out what would be best to put where. I want the switch to be accessible so I can change things out easily. I thought about getting the 1A and mounting it on it's side and then adding a cross or tee from the 3/4" port going to the tank to have the tank still on top. I will have to do some sketches.
I suppose I could use the 1A like this and add cross/tee at the top & then use the other ports on the manifold for other stuff. I definitely want to add a spigot and pressure relief valves since my existing system doesn't have those.
The use of crosses/tees coming out of the manifold lets me add more stuff and they aren't too expensive. But I'm trying to price out some fittings. Hard to find pex barb in stainless steel, but if I use my stainless steel hose thing & it doesn't leak, that might be better. Worst case, it leaks and I transition to PVC or use dielectric nipples or something to get to pex barb.