@johnda98 - I'm not sure what you're suggesting here.
The black tank rinse / sprayer port is in the black tank and the water connection for it is generally in the Nautilus water panel.
What do you mean by "sensor" and by "high pressure washer"?
Hi Jim,
yes.. the stock sprayer jet in the black tank.. is a good Alliance feature, it sprays generally the entire tank area.. but only with hosepipe pressure - which is fine.. but its jet is not directly targetting the sensors (to the left of the 3inch side drain pipe - it seems)
sometimes the down toilet bowl hose & stick wiggle works.. sometimes not..
Thus, if Alliance could consider the stock sprayer on the tank to be located to hit the sensors side wall inside, specifically... that might be a great feature - but of course the stock tanks from your suppliers may have stock locations for the sprayer(ie where it is now).
..the regular solution for sensors that have a build up over them, despite the stock sprayer activity, over time.. yes have to be cleaned with a high pressure - jet washer hose up the sewer outlet pipe with a nozzle that has a reverse jet - at high pressure.. this then hits the area in the tank that is where the sensors are located.. ie generally to the left side of the 3 inch outlet main drain pipe on that wall face.