jam0012
New Member
Hi everyone. I am brand new to pump sizing. I'm currently attempting to size a pump to transfer water from one 4 ft tall 300 gallon tank to another one. The issue is that I cannot find a pump that has the appropriate operating range for a total dynamic head of less than 10 ft. I'm looking at about 5 ft of TDH and I want a flow rate of 100 gallons per minute. Should I buy a pump that will operate at this flow rate with more head? I don't really understand why any pump curve stops before reaching the x-axis. If the pump can handle 25 ft of TDH, why not 2.5 ft? Thanks in advance for your help.