What happens with your machine when the wastetank is full? Back in the 90s before i started using PTOs my slide in just shut down till drained, it didn't go into a cool down mode.then pumpouts came along , but still if the tank filled it shut down. The way my pto bypasses high pressure water is looped back into the inlet side of the pump instead of to the waterbox as im to understand most slide ins do today. (Still you can't let it run indefinitely without squirting water eighter)As a result each time the water loops back into the pump it gets hotter so letting the machine run for long periods of time without squirting water is hard on the pump, without the remote on the machine i have to make several extra trips to the van on some jobs. I work "1 riot 1 ranger"
(1 technician to a machine, ) in my case it is a real convenience to be at the end of the hose several hundred feet from the van and simply press a button and go about my business moving furniture, sifting equipment up or down stairs, talk to customer, answer cell, whatever it is that stops me from squirting solution then when ready, simply press a button and continue cleaning