paulmars Posted February 19, 2013 Report Share Posted February 19, 2013 I had to move the tank 3 feet further down towards ground. So, now the heater pump needs to pull fuel up 3 more feet. There was already a long distance from tank to pump. About 40 feet. The tank was at the same height as the pump. fuel got pulled up about 5 feet, over about 30, then down about 5 feet. Its been working like this for 26 years. However, I had to move tank down 3 feet. So, its now pulling up 8 feet, then over 30 feet, then down 5 feet. However, now it keeps cavitating. What to do? Last resort is to move the tank back up. Someone said a small low pressure automotive fuel pump mounted at the tank to push the fuel. This work? tks,pa Link to comment Share on other sites More sharing options...
Jim Katen Posted February 19, 2013 Report Share Posted February 19, 2013 I had to move the tank 3 feet further down towards ground. So, now the heater pump needs to pull fuel up 3 more feet. There was already a long distance from tank to pump. About 40 feet. The tank was at the same height as the pump. fuel got pulled up about 5 feet, over about 30, then down about 5 feet. Its been working like this for 26 years. However, I had to move tank down 3 feet. So, its now pulling up 8 feet, then over 30 feet, then down 5 feet. However, now it keeps cavitating. What to do? Last resort is to move the tank back up. Someone said a small low pressure automotive fuel pump mounted at the tank to push the fuel. This work? tks,pa You have a leak in your line somewhere. Have you ever heard of a Tiger Loop? Link to comment Share on other sites More sharing options...
Bill Kibbel Posted February 19, 2013 Report Share Posted February 19, 2013 If the tubing is 3/8", it's beyond the allowable line length for an 8' lift. I would be converting to a 2-line system. Link to comment Share on other sites More sharing options...
paulmars Posted February 19, 2013 Author Report Share Posted February 19, 2013 1/2" Im considering a tigerloop Link to comment Share on other sites More sharing options...
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