I'm looking for a new pump for my 4 SS bay presoak selection. The existing defective pump is a Myers HJ50S, has a ge motor connected to it 1/2 HP 3450 rpm Says jet pump motor. This pump keep pressure all the time and has a small Expansion tank above, a on off pressure switch, and a pressure guage all in one. I found the same pump on the internet for $283. but was looking at the local grainger supply and they don't carry Myers Pumps.