Originally Posted by Skelshy
I've been having some issues with my black tank not flushing. I am pretty sure it's not just a clogged sensor; I can see the high water level in the toilet. Today I was able to at least partially flush it and look down. There's about a foot and a half of pipe down and then what looks like maybe a 2 in tall tank. The pipe down appears to have been clogged by a pack of TP. I fished out the TP with a self made hook and was able to see the bottom of the tank.
This is a surveyor sport sp-189; anyone know how that tank looks like and what to expect?
Sounds like the toilet drop tail pipe is too long, extends into the tank too far. You can clean and flush the tank, remove the head with two bolts and one soft pipe connection. Then you can have accesss to the installation. If indeed is only two inches to tank bottom it may be too close. Most tanks I've seen are 3-4" depth or more. To confirm you can remove skirting one either end of the tank and measure tank height. Sometimes there may be a shelf on the outboard ends but the head will we inboard of this. Now you have a 2" tank, when filled 2" all contents will be trapped like in a dam. At these numbers you only have an approx. 20 gallon tank.