Ok I stand corrected. The guy I got the heater said it has a 4000psi 5gpm max.
The flow switch has a either a 1.6 or .8 gpm min flow. I'll have to hook up my Bane clene machine to it and see how it works
I spent 4500.00 bucks this summer setting up a pressure washing vac recovering system. Great for garages and warehouses but nothing else. Way too much dirt gets recovered and your cleaning filters every 5 min. Run that blower into a 55 gallon drum with a sewage pump that can pump solids. Run the discharge hose into a sock filter, paint strainer and you can dump anywhere.