i have the in tank pumpout (the one in the blue box with screen on one side). it does not pump very well at all. if i have the machine idleing and no hoses on it pumps good but when i crank it up with hose and wand on it usually won't pump at all, sometimes barely a trickle but doesn't keep up. i just replaced the rule pump in it and check valve. cleaning it out didn't help. do i just have to much lift (about 15-16"hg sometimes up to 20, i need a new kunkle valve) and cfm (56 blower)? i...
auto pump-out problem
auto pump-out problem