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Old 09-23-2013, 01:21 PM   #1
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Dometic Toilet Caution

The PO replaced the toilet in my RV with a Dometic SC 310 chair height about 3 years ago. After our spring trip I gave it a good cleaning. In prepping for our fall trip I stepped on the flush pedal and the gate (ball) valve in the bottom of the bowl didn't move. The rubber seal was dry from the cleaning and stuck to the gate valve causing two tiny tabs to shear off the shaft that connects it to the pedal. Awe poop! After three successful stops at RV shops and online searching, a call to a very nice customer support at Dometic confirmed that the part is not individually available. Everything else is but not that part. I have to buy a new toilet. Awe crap!!!

Unavailability of this key part makes the toilet very fragile. If you clean it make sure you re lubricate the valve and seal before you step on the pedal. Especially if its going into storage. Carefully operate the pedal by hand after periods of non use to make sure its not sticking. You wont even realize these little tabs sheared off until you notice that the valve didn't open.
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Old 09-23-2013, 01:39 PM   #2
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Thanks for that info. I have the 310 and will lube as needed.
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Old 09-23-2013, 01:46 PM   #3
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Lube.... Mineral oil?
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Old 09-23-2013, 01:52 PM   #4
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I think that would work, so might some Vasoline (real thin coating).
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Old 09-23-2013, 02:04 PM   #5
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Thetford makes a product that is intended for use as a winterization product. It's a thick fluid you squirt into the bowl, which, if your valve doesn't leak, will coat and seal it for the winter.

Works great, sells for about $7 a bottle, IIRC and if you use it as per their directions, will last one year (they say to use it more often than just as a winterization protectant).

Great investment. I mean, who wants to work on their toilet?
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Old 09-23-2013, 02:07 PM   #6
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Waterproof plumber's grease would probably work best, because it won't wash off.

Danco Perfect Match: Silicone Grease - Amazon.com

Amazon.com: Rectorseal 50811 2-Ounce Plumbers Grease: Home Improvement


Also, you might try an occasional spraying with aerosol "Teflon" mentioned in other threads on AirForums.

http://www.airforums.com/forums/f475...ml#post1352274
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Old 09-23-2013, 03:50 PM   #7
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Or eating more bacon! Sorry!

Just ordered a new toilet from PPL $134!
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Old 09-23-2013, 07:03 PM   #8
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Durnnnn!!!! Wish shuda read this before ordering the 310. Gonna try and cancel. Maybe they should listen?

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Old 09-23-2013, 07:37 PM   #9
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Durnnnn!!!! Wish shuda read this before ordering the 310. Gonna try and cancel. Maybe they should listen? Steve
I like the unit and think you will be ok if you are aware of the potential problem.

I am disappointed with Dometic. I pushed a bit to see if I could get them to offer the part and got a pretty surly NO! 2 years, original owner they will cover it. Outside of that, buy a new one. They don't seem to support older appliances. Parts are not available for my 1995 refrig.
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Old 09-23-2013, 09:54 PM   #10
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I like the unit and think you will be ok if you are aware of the potential problem. I am disappointed with Dometic. I pushed a bit to see if I could get them to offer the part and got a pretty surly NO! 2 years, original owner they will cover it. Outside of that, buy a new one. They don't seem to support older appliances. Parts are not available for my 1995 refrig.
So, buy extra moving parts for the moving parts to service your moving parts? Yup
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Old 09-24-2013, 09:12 AM   #11
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Dakota: Did they not have the part for sale? Seems if they warranty the unit for 2 years it should be available. Maybe planned obsolescence?

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Old 09-24-2013, 10:38 AM   #12
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Dakota: Did they not have the part for sale? Seems if they warranty the unit for 2 years it should be available. Maybe planned obsolescence? Steve
From Dometic: David- That part on a 310 is not available by itself, you would need to get a new toilet....sorry! Thank you Then I asked if there was any way they could submit a request to make this simple part available: Mr. ...... I do apologize, but it is just not available by itself. You can give Sealand a call to see what they say if you'd like 1 800 321 9886. Thank you! Called Sealand and was told that it wasn't covered under warranty because it was over 2 years old and regardless, I am not the original purchaser. Have to buy a new toilet as that part is not available individually or as a subassembly.
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Old 09-24-2013, 04:01 PM   #13
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Thanks for the heads up. I think the valve is covered, when new, with plumbers silicone paste. I have reapplied once in the year or so that I have had it. Plumbers silicone seems to stick well and last for at least a year.
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Old 09-24-2013, 04:14 PM   #14
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That's a great reason not to buy the same one for a replacement. When a manufacturer makes key parts unavailable so you have to buy the whole thing, I always buy another brand. And I try not to do business with that company. Which may be hard with Dometic as they make lots of RV parts that we all use.
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