i have the power max xp652 water pump, 2 inch inlet and outlet, 6.5 horsepower, and says it can reach 100 psi. now i bought the pump so i can use it for my mobile detailing business, the problem is im barely getting 40 psi out the end and its not very much water to wash a car with. Im using a two inch suction hose to get it in, then right after the outlet i reduced it down to 3/4 inch into a 50 ft. garden hose. this only got me 40 psi and the nozzle was basically just spitting it out, so i tried using 50 ft. of 1/4 inch pressure washer hose and it didnt change anything still 40 psi. so please if there is any way i can up the psi, please tell me any ideas are good. i dont know if its just because i reduced it down too quick or if my suction hose is too big. someone who is into hydraulics please help.
I don't know anything about the xp652 , but if this pump goes in a well you also need a pressure tank and then a preassure switch , the pump starts it you the get a tank , if your tank has a bladder it will probably be preset at 30 psi but thats not where you get your pressure the switch has two little screws one will set how hard she blasts ( thats where your pump comes in) the other one sets how low your pressure gets before the pump turns on again , But if the xp652 is an outside system , ( outside of your regular weter pumping system then , Never mind .
Larger diameter inlet and hose pipes will help reduce the dynamic resistance during spraying.. But it is not clear how you are measuring the pressure. If the nozzle is off and you are measuring 40 lbs of pressure then that is all the pump is producing. This could be that the pump cannot provide the pump cannot pump to that pressure, or that the pressure release valve is set too low. Somewhere there is a valve that lets excessive pressure escape. That is usually very near the pump and it may release the pressure back into the reservoir - so you cannot rely on water spilling out someplace.
