wont maintain steady pressure

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Dec 4, 2018
Real Name
Grier Price
no matter which tool I use. When I pull the trigger I begin with the set pressure then It quickly fizzles out into a small stream until I let go of the trigger. I have completely removed the chem injection system(pulse pump). Checked all hoses and fittings from water tank to pump(all clear). did a little rebuild on pulsar 3 unloader. It still wont bypass water, so always reading full set pressure on the gauge(500psi), even whan not pulling the trigger and losing pressure the longer the trigger is depressed.
ideas anybody?