Tank monitor question...

[jjrbus]

Flashlight is money well spent for blackwater tank. 100% accurate at all times. But how to check freshwater tank with it?  A light behind freshwater tank would work well. Even an xtra opening in tank with a light wired into plug.
It seems like a alert of some kind for blackwater would be nice. But when fulltiming you develop a sense of when it is time to empty tank.
On my old S&S the bwater monitor always read full, unless you cleaned it, it needed cleaning after every dump!!!!! The  toilet would  "burp" when bwater tank needed emtpying. I belive this was due to vent pipe being installed so that it extended into tank.  There is an inexpensive alert, design so vent pipe extends into bwater tank an inch or two or five. When flushing, the burp and smell will alert you

[TomC]

My fresh water tank is mounted under my rear bed.  The tank frame is 3/4" plywood that also serves as the bed platform.  In that 3/4" plywood I cut with a router 4 slits to cover the entire height of the tank.  I have a halogen puck light I can turn on over the tank and then plainly see the level.  On my gray water, I check it at night with a flashlight.  I know when the black tank is full when the toilet "burps" when flushing.  I find no need for remote tank monitors that will eventually fail over and over again (spelled money spent again and again)  Good Luck, TomC