Tuesday, August 19, 2014


Joani had wanted a new commode for as long as I could remember. She had done a lot of research and settled on one particular model (Dometic 320).  It was in-stock at Camping World and the guy was happy to match an internet price, so we had another project to tackle, Yea!

When we installed the floor I had capped the plumbing line with a shut-off valve, so removal of the old commode was no problem. Unfortunately, the flange collar did not line up with the new holes, so it required a few trips to Home Depot before finding just the right parts to remedy that situation.


The new unit did not include a sprayer (something Joani strongly felt was required).  I had intended to tap into the supply line but looking at the vacuum breaker module it was pretty clear they were almost identical.  Just a little modification and the module from the old unit was installed in the new unit with the required sprayer neatly included.


The last obstacle was connecting the supply line.  In a house, there are standards for most all plumbing, but Dometic did not feel the need to conform - their's was not a household product.  The valve was sized for a standard home faucet supply line (instead of a standard toilet supply line) except that there was no clearance for a standard cone washer.

After studying the mismatching plumbing for a while I decided to replace the cone washer with an "O-ring".  I was not sure just how well my fix would work, but everything tightened up well and held pressure nicely.  The last step was to replace the heavy enameled wood seat/cover (which had no place in a moving house) with a nicely molded plastic, soft close cover and the installation was complete.

1 comment:

  1. Oops, never mind, it looks like you already have the tag I was looking for! :P

    ReplyDelete