I run 2.0 with my spx3000 and she runs very nicely. I did a pressure test and 2.0 orifice seems to yield the highest PSI (1300-1400), 2.5 stepped it down a bit to around 1100. Cant go wrong with...
I use MTM brass qd’s coupled with a Dramm brass shutoff valve and the stock sunjoe aluminum fitting. And it’s solid as a rock! I also added a screen filter inside the shutoff valve to catch the...
you can try contacting Damien Johnson in the UK, he runs "Q Washers" services in the UK, hes the king of anything pressure washers as far as fittings, custom setups, hoses, etc... Ive bought from him...
You could buy this adapter from MYM Hydro and convert your m22-15mm end to a standard m22-14mm end. From there you can use a standard m22-14mm hose and make your own custom setup with new spray gun...