We use two shurflo pumps with a splitter; works no problems.
He's been told that already but doesn't seem to be listening.
To be honest, I know it will ‘work’ but I’m not in a rush to try it all to then find out the flow rate drops, I’m not convinced one 3/4 inch outlet is going to cope with both pumps almost flat out. (By cope, I mean produce the same flow rate I currently get through one pump)
I’ll try it out, if it doesn’t work, I’ll draw from the tank. I’ve been in this game long enough to be fed up with poor flow, so I NEED FAST FLOW