Pressure washer startup

1

I have a pressure washer with a honda 160 verticle with a new pump.I cannot get it to start on its own, itll pop then i relieve pressure and this goes on.It will start if i hold gun so its on then itll start, whats up!I have not put a gauge on it yet to see what the pressure is

2

Can i mix SH with degreser? Im doing my first restaurant patio.not sure if i should use or just degreaser?

3

You shouldn’t need SH at a restaurant……degreaser is really all you need, maybe some sodium hydroxide beads…..

4

Thank you