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Old 12-29-2022, 01:14 PM   #1
jtmyrand
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Smile New toilet replacement/recommendation

Due to my factory installed toilet not getting winterized properly the internal valve has been broken. Rather than replacing the valve, I am looking for recommendations for a porcelain toilet replacement. ??????
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Old 12-29-2022, 02:44 PM   #2
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Dometic 320 has always been our favourite.
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Old 12-29-2022, 02:48 PM   #3
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Quote:
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Dometic 320 has always been our favourite.
+1 on the 320; get the tall; requires measurement as the rear of the toilet needs a bit more room than most of the OEM installed toilets. See Dometic's website for dimensioning.
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Old 12-29-2022, 09:53 PM   #4
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Make us X3 for the Dometic 320, we like our very much.
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Old 12-30-2022, 09:33 AM   #5
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I agree with the above comments, a Dometic 320 "elongated toilet" (if it will fit) is a good upgrade. But, in many trailers, there's just not enough space behind the toilet drain fitting/floor flange. The wall is "simply too close to the hole" and the 320 toilet won't fit. In that case, the Dometic 310 toilet (porcelain bowl) and the Dometic 300 toilet (plastic bowl) have the same footprint (a couple of inches shorter than the 320), so they are, for the most part, interchangeable with each other and may fit where the 320 is just too long between the flange and the wall....

The "rub comes" with trying to interchange a Thetford toilet with a Dometic toilet. Thetford, for the most part, uses a significantly shorter "flange to wall" space and quite often, in "more compact bathrooms" there just not enough space to install a Dometic toilet to replace the Thetford.

So, measure twice, recommend even three times, before committing to a 320 over a Thetford, where "MAYBE" you can squeeze in a 310 but never a 320.....
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Old 12-30-2022, 03:48 PM   #6
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I agree with the above comments, a Dometic 320 "elongated toilet" (if it will fit) is a good upgrade. But, in many trailers, there's just not enough space behind the toilet drain fitting/floor flange. The wall is "simply too close to the hole" and the 320 toilet won't fit. In that case, the Dometic 310 toilet (porcelain bowl) and the Dometic 300 toilet (plastic bowl) have the same footprint (a couple of inches shorter than the 320), so they are, for the most part, interchangeable with each other and may fit where the 320 is just too long between the flange and the wall....

The "rub comes" with trying to interchange a Thetford toilet with a Dometic toilet. Thetford, for the most part, uses a significantly shorter "flange to wall" space and quite often, in "more compact bathrooms" there just not enough space to install a Dometic toilet to replace the Thetford.

So, measure twice, recommend even three times, before committing to a 320 over a Thetford, where "MAYBE" you can squeeze in a 310 but never a 320.....
I had the world famous Thetford Aqua Magic toilet in our camper when we first took ownership. That toilet is 4" high and is shaped like a round bucket. It is an abomination. I carefully measured using the Dometic drawings and found I had plenty of room for a tall 320 and also installed a shut off valve (which I have never used) but thought it a good idea at the time. It is probably just as easy to shut city water off if you need to work on the thing.
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Old 12-31-2022, 04:16 AM   #7
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Per e-Trailer, for the 320:

https://images.etrailer.com/static/i...479263_800.jpg
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Old 12-31-2022, 08:20 PM   #8
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Perhaps it is my tired old eyes but the 11" they have measured won't allow the top/rear of the toilet room by eyeballing.
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Old 01-05-2023, 08:26 AM   #9
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Dometic 320. Easy to do. We had the same problem you have and are still happy with the replacement toilet.
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Old 01-08-2023, 08:35 AM   #10
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I decided to go with the Dometic 320 Series Toilet. It’s awesome! It was easy to replace. I was done in 15 minutes. We will see how it works over the summer. Thanks everyone for your help!
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Old 01-08-2023, 08:40 AM   #11
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Ours is going strong after 4 years
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