Best way of hooking up 9 gallon gas tank to pressure washers?

Dan Manley

Dan Manley

Member
Hey guys,

trying to maximize space in my box truck and would like to eliminate having several gas cans laying around.

I have a spare 9 gallon gas tank from my boat that I never had to use with primer bulb.

I took off the fittings and slid the 3/8 house over the 1/4 line that leads to my pressure washer...I prime it up and it fills up just fine, I start the machine and it will runs great

I engaged my trigger gun and then after about 2 minutes it runs out of gas and the line is dry, I re prime and it fills back up...then same thing all over again

Is the primer bulb shot? do I need to install the fittings like on a boat to keep the line pressurized (instead of just slipping the one hose into the other like I stated above)?

I would like to T it off and feed to both machines but was just testing it our first, Whats the best way of installing my 9 gallon gas tank to my washer?
 
Primer bulbs acts like a check valve (in fact it's 2 check valves) and doesn't let fuel flow freely. It works on a boat engine because it has a fuel pump.

2012-07-02_221746_primer_bulb.jpg


Replace the primer bulb with a male to male nylon barb fitting.
 
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So I should ditch the primer bulb and run a hose straight from gas can to pressure washer?

Would I have to raise the gas can high than the pressure washer so gravity does the work or can I mount it to the floor?
 
Dan Manley said:
So I should ditch the primer bulb and run a hose straight from gas can to pressure washer?

Would I have to raise the gas can high than the pressure washer so gravity does the work or can I mount it to the floor?
Click to expand...

Yes and yes, but no more than the current tank. Your current tank is gravity fed too albeit a couple inches above the carb inlet. Any height should work as the carb has a float bowl that will shut off the fuel until it needs more.
 
I would like to mount it on the floor underneath my washers mount, what would i have to do to make that work?
 
Like red mentioned if your machine is not equipped with a fuel pump because the tank is gravity feed you will need to add a 12v pump on the system. make sure the pump is rated at a pressure within the engine manufactures specs. I know with kohler they don't want anything over 2psi I believe.
 
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