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05-03-2020, 08:40 PM
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#1
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Member
Join Date: Apr 2017
Location: Salt Lake City
Posts: 53
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Strange smell!
A little delicate subject, a bit stinky! I am getting a very strong, pungent smell from the bathroom. The blank tank has been cleaned thoroughly, three times and doesn't seem to be coming from the tank. Did the smell test close to toilet opening to confirm. The smell is like strong urine, chemical like. Have checked everywhere, even under the belly. Can't seem to find anything that would cause this. Any ideas?
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05-03-2020, 08:53 PM
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#2
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Senior Member
Join Date: Feb 2018
Location: TEXAS
Posts: 9,232
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Quote:
Originally Posted by kgriff5667
The smell is like strong urine, chemical like. Have checked everywhere, even under the belly. Can't seem to find anything that would cause this. Any ideas?
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It could be that the toilet is leaking. These toilets have a plastic ring (like the wax ring in a home toilet) that can go bad and cause a leak at the base.
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2015 Dynamax REV 24TB class C
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05-03-2020, 09:03 PM
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#3
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Senior Member
Join Date: Dec 2013
Posts: 806
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Thought I read about some toilets have a defect and will trap waste water in them, not sure the model tho. A quick search may help
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2006 2500HD CCSB 2WD 2014 Crusader 285RET
Nights camped in 2013 - not enough!, 2014 37, 2015 40, 2016 39, 2017 38, 2018 36, 2019 37, 2020 26, 2021 28
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05-03-2020, 09:09 PM
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#4
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Scoundrel
Join Date: Feb 2017
Location: Montrose, Colorado
Posts: 2,817
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Also you may want to look for an anti-siphon trap vent under the bathroom sink. When they go bad it can stink up the place. Replacement is an easy fix.
https://www.loveyourrv.com/bad-smell-coming-rv-sink/
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2024 Geo Pro 15TB, 400W Solar, 2 Golf Cart batteries
2015 F-150 5.0L V8 XLT Crew Cab, 4x4, Tow Package, 36 gal tank, 3.55 locker, 1891 payload, Integrated Brake Controller, Roadmaster Active Suspension
Wooden Spoon Survivor
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05-03-2020, 09:30 PM
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#5
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Senior Member
Join Date: Jan 2013
Location: Space Coast of Florida
Posts: 4,024
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It is probably your toilet. There have been many threads about the Dometic Model 300 toilet. They have a defect where liquids (urine water) gets trapped between the bowl and the base.
Look on the side of your toilet by the flush pedal and get the make, model number, serial number (use your phone camera). If it is a model 300, call Dometic and see if it is one in the recall.
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2016 Siverback 33IK, Towed 50K+ mile
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
"If you don't know where you are going, any road will get you there."
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05-04-2020, 05:53 PM
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#6
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Senior Member
Join Date: Jun 2019
Location: Rockford, Michigan
Posts: 474
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Quote:
Originally Posted by dalford
It is probably your toilet. There have been many threads about the Dometic Model 300 toilet. They have a defect where liquids (urine water) gets trapped between the bowl and the base.
Look on the side of your toilet by the flush pedal and get the make, model number, serial number (use your phone camera). If it is a model 300, call Dometic and see if it is one in the recall.
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Do this ^. You probably have the Dometic 300 that has a seal between the top and bottom half that fails and allows urine and water to collect. Sometimes you can squeeze phone camera along the back and see the issue. Here’s a pic of what it might look like.
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TT: Flagstaff 25FBLS
Previous TT: Jayco, Rockwood and Flagstaff
TV: 2017 F-150 SCREW, 3.5L Ecoboost, 10 speed, 3.55, 7000# GVWR, tow package.
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05-04-2020, 06:07 PM
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#7
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Site Team
Join Date: Oct 2014
Posts: 15,302
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X2 Dometic 300. If that is what you have, contact Dometic.
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2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
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05-06-2020, 10:33 AM
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#8
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Member
Join Date: Apr 2017
Location: Salt Lake City
Posts: 53
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Thanks everyone! Problem solved. Did have a 300 series toilet, bought a new one and replaced. Now will try and deal with Dometic. I was concerned with the new toilet having the same problem but the reviews were pretty good and the sell person assured us of quality, so we replaced it with a Dometic 320 unit. Installation took 15 minutes! One and done, hopefully!
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05-06-2020, 10:35 AM
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#9
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Member
Join Date: Apr 2017
Location: Salt Lake City
Posts: 53
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Quote:
Originally Posted by Funengineer
Do this ^. You probably have the Dometic 300 that has a seal between the top and bottom half that fails and allows urine and water to collect. Sometimes you can squeeze phone camera along the back and see the issue. Here’s a pic of what it might look like. Attachment 228379
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That is one scary picture! Wow!
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05-06-2020, 11:15 AM
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#10
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Senior Member
Join Date: Jan 2013
Location: Space Coast of Florida
Posts: 4,024
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Quote:
Originally Posted by kgriff5667
Thanks everyone! Problem solved. Did have a 300 series toilet, bought a new one and replaced. Now will try and deal with Dometic. I was concerned with the new toilet having the same problem but the reviews were pretty good and the sell person assured us of quality, so we replaced it with a Dometic 320 unit. Installation took 15 minutes! One and done, hopefully!
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Good choice on the 320. An actual ‘adult’ toilet.
__________________
2016 Siverback 33IK, Towed 50K+ mile
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
"If you don't know where you are going, any road will get you there."
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05-10-2020, 07:11 PM
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#11
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Member
Join Date: Apr 2019
Posts: 98
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Can just the seal be replaced or must the entire toilet be replaced? We have a 3 year old unit.
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05-10-2020, 07:32 PM
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#12
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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Quote:
Originally Posted by Aspendog
Can just the seal be replaced or must the entire toilet be replaced? We have a 3 year old unit.
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I had read somewhere that the Dometic 300 toilet can not be disassembled and the seal replaced. I believe it was in the owners manual someone posted here in the forums.
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Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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05-10-2020, 07:54 PM
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#13
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Member
Join Date: Apr 2019
Posts: 98
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Quote:
Originally Posted by Scrapper
I had read somewhere that the Dometic 300 toilet can not be disassembled and the seal replaced. I believe it was in the owners manual someone posted here in the forums.
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Thanks.
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05-14-2020, 09:45 AM
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#14
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Member
Join Date: Sep 2019
Location: Florida
Posts: 37
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I just spoke with Dometic sanitation division 800-321-9886 I also have a 300 model toilet experiencing this smell. They are not referring to it as a recall but were very nice on the phone. They offered me an upgrade to the 310 model for $50 and $75 for the 310 with a slow close lid. I have not measured the rough in space but she said you need 9&5/8" from center drain to the back wall for the 310 to fit.
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2020 Salem 31KQBTS
Tow Vehicle 11' 6.7 F250
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