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Old 10-15-2012, 06:48 AM   #1
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Leaky Dometic 310 Potty

Found a wet bathroom floor this weekend and it appears to be coming from area where bowl and base are connected. Toilet is a Dometic 310. Has anyone else experienced this problem? Manual says for this model, bowl and base should never be separated. Does this mean another 110 mile trip to dealer or is it maybe leaking from another area and running down base from the bowl/base seam? Thanks in advance for your replies. Steve
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Old 10-15-2012, 07:04 AM   #2
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I had the same problem with the same model last spring. There are four plastic clips that hold the two sections together and once they break or come loose water (fluid) seeps between them and out around the base. It is not a good toilet for an RV, and even though mine was still under warranty (two years) I replaced it with a thetford on the advice of a RV parts store. Not fun cleaning up the mess.
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Old 10-15-2012, 07:25 AM   #3
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Thanks. Mine is only 6 months old. Been having an odor since purchase and just noticed the leak. Perhaps initial leak was small enough to where it was drying before making it to the floor.
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Old 02-14-2013, 10:43 PM   #4
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Had the potty replaced in mid December under warranty. 2 trips later leaking again in the same place. What is the best replacement for the Dometic 310? Is the Thetford the same height and is it a one piece or a 2 piece as the Dometic 310? Thanks in advance. Steve A. Dagro
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Old 02-15-2013, 06:54 AM   #5
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I replaced mine with the Thetford Aqua Magic, there are different models to choose from regarding foot flush, hand flush and height. I did have to reroute the water inlet behind the toilet as the connections were in a different spot, used the slip-on connectors and took about 30 min total. The Thetford is a two piece but much better put together, have had no issues with it at all.
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Old 05-13-2013, 09:17 AM   #6
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I just had my maden voyage with my new Rockwood. When I was de-winterizing I notice the exact same problem as you mentioned above. I have the Dometic 300 or 310, I am not sure which.

Steve, Did you ever replace the Dometic with a Thetford?
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Old 05-13-2013, 02:12 PM   #7
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Quote:
Originally Posted by utah_utrup View Post
I just had my maden voyage with my new Rockwood. When I was de-winterizing I notice the exact same problem as you mentioned above. I have the Dometic 300 or 310, I am not sure which.

Steve, Did you ever replace the Dometic with a Thetford?
I'm not Steve, but since this thread is so old - you might want to PM him with your question.

However, I did have the exact same issue with my Dometic toilet on my first trip of this year's camping season. I called Dometic directly. They agreed to have it changed under warranty (8 month old camper) and set me up with a local service center to take care of it (vs. my actual dealer who is 145 miles away).
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Old 05-14-2013, 09:59 AM   #8
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Originally Posted by utah_utrup View Post
I just had my maden voyage with my new Rockwood. When I was de-winterizing I notice the exact same problem as you mentioned above. I have the Dometic 300 or 310, I am not sure which.

Steve, Did you ever replace the Dometic with a Thetford?
Hi UT!
my dealer replace my Dometic 310 with a Thetford Magic V??? Haven't used it yet though. Looks nice. Flush pedal is in the front as opposed to the side mount on the Dometic. Steve
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Old 05-15-2013, 08:38 AM   #9
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The dealer is upgrading my plastic 300 to a porcelian 310. Those with problems with the 310, was that a plastic or porcelian toilet?
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Old 05-15-2013, 09:16 AM   #10
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Mine was the 310. Porcelain bowl w/ plastic base. This was the one Ed replaced twice. Jury still out on the new one as we have not used it yet. Steve
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Old 05-15-2013, 09:19 AM   #11
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Mine was the 310. Porcelain bowl w/ plastic base. This was the one Ed replaced twice. Jury still out on the new one as we have not used it yet. Steve
I *think* mine's the same..
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Old 07-08-2013, 08:17 PM   #12
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add mine to the dumper list

We were out this past week and an odor was present. it was our third voyage this season. Called the dealer and when I told them the model (dometic 300) they knew right away.

I removed the toilet this evening and could hear the sloshing within the toilets outer cavity. They are swapping me for a new one under warranty(easier than dragging rig to them)

I'm hoping this design issue has been rectumfied

Gum
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Old 07-30-2013, 11:14 AM   #13
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Well guys, here is my update on my new Thetford toilet. Spent 2 weeks in Gulf shores and had no problem with toilet odor the 1st 4/5 days. Then we began experiencing the rotten egg smell. Was told by dealer to keep both greys open when possible, which we had done. Black tank read 2/3 full so I dumped, flushed and put packet in. Everything was fine after that. 2 days after returning home I went into camper for something and the smell was horrible. A few days later went in to add water to all tanks thinking they may not have had enough water in them to fill the bottom of the tank...smell was gone but decided to add a little water to all 3 tanks and another pkt to the black since I was not 100% sure I had done that before leaving campground. Next day odor was back. Lets go backward a bit. Dealer has replaced toilet 2 times, last time changed from Dometic 310 to the Thetford Magic 5(I think). Then odor was coming from front wardrobe so they resealed the w/d hook-up vent. Same results. When they did the last replacement of toilet I had them glue the vent cap as I never plan on having a w/d. Still funky rotten egg smell throughout camper. Actually a slightly different odor in bathroom. Taking unit in for front A/C warranty work next Monday and will have them check it out again. Cant be too many things that could be checked. Any others out there with this problem.
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Old 07-30-2013, 11:24 AM   #14
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Either you don't have any water in the p-traps (shower and sink), or you have a broken/disconnected tank vent pipe in the wall or floor.

Edit: Actually there is more likely solution than the two I gave. You may have a defective "cheater" (air admittance) valve. These are easily obtained at Home Depot.
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