I am set on putting in the larger tank. I can get it for $250 or so. I will call them about sensor but do not see any mention of it on the site. Hope mine is a strip sensor I can just transfer. Won't know till I get it out. Fresh water sensor is usually pretty reliable as it cant get gummed up with poop or other contaminants. There are after market sensors available but I am worried about getting the wiring to the panel by the door. I have a covered underbelly and do not want to mess with pulling it off to run wires if I don't have to.
