Noisy Thetford toilet Model 19430 Aria Deluxe Low

[awichman]

Our Thetford has been getting noisier and noisier...when we flush it sounds like a NASCAR race car is in the RV. It also no longer holds water. We put Thetford lubricant in the toilet thinking it was the flap that was the problem and that seemed to quiet it a bit but the noise is just getting louder. Do we just need to replace the toilet or the flap? Any suggestions would be appreciated.

This is in a 2003 Newmar Mountainaire.

[Chickadee]

awichman:

I think we have the same model. Haven't used "Thetford Lubricant", but whenever ours starts making noise (maybe once or so a year), I'll push both flush buttons simultaneously to open gate valve. I'll then clean the gate valve seating groove all around the drain opening with an old toothbrush and a few cotton swabs so all debris is gone. (Be very careful NOT to inadvertently drop tooth brush or swabs down the drain !! ). I'll then dip a cotton swab in vaseline and apply it well into and around this gate valve groove (inside the groove). I'll then close the gate valve and apply vaseline all around the black gate valve gasket and particularly at the aft (back) edge where the gate begins it's slide into the back when it is opening. I'll cyle it it a few times, then add more vaseline to the aft edge of the gate valve and cycle it some more. Noise has always gone away if not right away, it will in a day or so of use.

Steve

[Doc Mark]

Steve - I always thought that any petroleum based product (vaseline) and rubber don't mix!?

Mark