Originally Posted by KJRitchie
If I have to replace a sensor what tool would I use the cut a clean hole. The holding tank is separated from the pan with 1/2" insulation.
I haven't had to make the cut yet, but expect to in the future, if not for the sensors at least to get to the dump valves. Hopefully someone who has done this will chime in. I believe one of these multifunction tools as they are sometimes called might be the ticket. I have one and have used the half circle blade to cut sheet metal. It doesn't rotate, but vibrates and works a lot like the saw the orthopedic doc use to cut casts off. Go slow to control the depth. I snagged this pic from the Harbor Freight site, but have seen them at Sears, Walmart, etc. there are a variety of blades for various tasks.
Are the sensors mounted on the drain pipe between the tank and the dump valve?