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by Dawn
(Traveling in Texas)
How to Get Rid of the Sewer Smell in Your RV
40" Fleetwood Revolution RV has sewer smell only while driving how do I fix it?
ANSWER: Hi Dawn thanks for submitting your question on our Ask An RV Question Page
The bad news is that this is a common problem that RVers experience. The good news is that in most cases there are some simple steps you can take to stop the sewer smells from entering your motorhome while going down the road. Below I have listed the most common causes and remedies for a "Smelly Motorhome".
No Water in P-Trap Each of the sinks and showers/tubs in your RV have a P-Trap (see picture at the top of this page) just like the sinks and showers/tubs in your house. The curved part of the P-Trap is designed to hold water and prevent holding tank fumes from entering the RV from the drain. The problem is if there is no water in those p-traps holding tank gasses could be sucked into the motorhome through the dry drain.
If you drive your motorhome with windows or vents open it can create a suction in the RV almost ensuring that holding tank fumes will be sucked into the motorhome through a dry sink or shower/tub p-trap.
Solution: Before traveling make sure that you dump some water in each of the sink and shower/tub drains in your motorhome. If this does not cure the problem move on to the next step.
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