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Old 11-06-2018, 01:47 PM   #21
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My problem with trying to fit a 310 or 320 where I currently have a 300 is that the 300 is mounted into a corner and not a flat wall. The back corners of the 310 and 320 contact the walls and I can't set the new toilets over the drain hole.
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Old 11-10-2018, 01:38 PM   #22
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Quote:
Originally Posted by rk06382 View Post
My 320 has water all around rim instead of single jet of the 300.


The 310 has water all around the rim too but it seems to be much lower pressure.
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Old 11-10-2018, 07:45 PM   #23
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Replaced my stock toilet in my 2018 30ds with the 320, it is a great upgrade!
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Old 12-04-2018, 09:38 AM   #24
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Clogged toilet filter

MY 2018 30DS stock toilet constantly clogs and the water wont circulate in the bowl. Looking to upgrade to porcelain toilet anyhow. Will that eliminate most of that? I hear the valve setups are better.
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Old 06-10-2019, 10:31 AM   #25
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The Dometic 300 in our 2109s began to smell after 5 years and only after we had towed over some seriously rough roads, especially the Labrador Highway from the coast of Labrador to Labrador City, then down to the St. Lawrence -- roughly 1,000 miles, with only 250 miles or so of pavement and the rest really bad. Quite a bit of stuff worked loose in the trailer, so I guess can't complain about the toilet when it had been problem-free before then. I still don't understand exactly what went wrong, and it took us awhile to figure out that the toilet must be the problem -- thanks to this thread to help us come to that conclusion. We replaced the 300 with a 310 because we decided to make the replacement during our current road trip, and I didn't want to waste time finding out the 320 either wouldn't fit at all or would take up too much room after we tried it out. We found someone in Vancouver who would meet us during our current trip at our RV park with the new toilet -- great guy, and I highly recommend him:

Craig Spink (Mountain Valley RV Services) 604-999-6878
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Old 06-10-2019, 01:08 PM   #26
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Toilet Replacement

There was a previous thread on the urine odor from the Dometic 300. It was some type of design flaw that allowed urine to become trapped in a little gap behind the toilet. Before learning this my wife and I were feverishly cleaning the bathroom to no avail trying eliminate the odor. Finally decided to replace with the 310, which we love. When I pulled the 300 and took it outside, sure as s**t that little pocket in the back had some rank old piss in it. Gross, but problem solved.
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Old 06-17-2019, 06:29 PM   #27
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I had a 300 dometic

I replaced my 300 dometic with a 310 the 300 had a problem and it was replaced for free but I took the upgrade for 75 dollars. Phone dometic and see if your serial no is in the recall
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