gray/black water debris

[Snuggery]

Every few months, while emptying the gray and black water tanks, I notice what looks like chunks of rusty metal in the sewer hose. They measure about 3x3 inches and appear to be flat and thin layered rusty metal sheets. I don't think that the waste water tanks have a metal lining so what the heck could this be?? It started soon after we purchased our Alpine Coach new 4 years ago.

Could it be parts of the valve system? They are certainly large enough to jam up or damage the valves.

[Snuggery]

Every few months, while emptying the gray and black water tanks, I notice what looks like chunks of rusty metal in the sewer hose. They measure about 3x3 inches and appear to be flat and thin layered rusty metal sheets. I don't think that the waste water tanks have a metal lining so what the heck could this be?? It started soon after we purchased our Alpine Coach new 4 years ago.

Could it be parts of the valve system? They are certainly large enough to jam up or damage the valves.

[andye]

Hi Snuggery
This would be to easy to make a joke of. Try filling both tanks drain one at a time see if you can tell if its from the gray or black tank it almost has to be the black if so someone is playing with you or you are taking to many vitamins. Sorry just couldn't help my self. One more thing at the factory people drop stuff in the tanks and don't clean them out but after four years that should be long gone

[takepride]

Sounds like thin layers of sediment coming loose from the sides or bottom of the tank. Try putting 4-5 bags of ice cubes and 3 gallons of water in the tank and then driving around for a while. That will likely scour lots of them loose.

You might also try a double dose of "Happy Camper" to loosen it up.