This is for anyone who has a Dometic Toilet Model #300, 310 or 320 installed in your RV. Be very sure that you read and follow the winterizing instructions in your Dometic operations manual that you should have received with your RV.
If the water valve is not cleared of all water, as per the instructions in that manual, there is a very strong possibility that in freezing weather that valve will burst. I know this because I had both of mine to do just that. (2 toilets in my unit)
The valve is not difficult to replace but it does cost about $35.00 if ordered on line. The part # is 385311641
If you do not have that manual just go to YouTube, type in Dometic toilet and you will fine a number of videos on how to change out that valve.
