water in the underbelly

Question

I noticed water dripping around the sewer drainpipe while we were rving.  Took part of the underbelly down around the pipe and it was wet but seemed to be fresh water.  Not much odor at all.  Took the basement wall out.  The basement was dry and there is no evidence of any water leak inside the rig.  Carpet etc all dry.  After taking out the basement wall, I found fresh water on the top of the black holding tank.  We have had no rain for weeks so I do not think this is rain water.  We had not driven in the rain either.  I am trying to determine where this water could be coming from.  Any ideas.

old-biscuit · Answer

While in the basement have someone take a shower......not just turn on water but stand in shower stall with water running

ron_nielson · Answer

I recently found a leak in the black tank flush system of my trailer. Mine was a cracked fitting (probably from freezing - I never winterize the flush)that dripped down just inside the outer skin of the trailer,but it could have been somewhere else on the tank. If your shower doesn't reveal the leak, keep looking, use city water pressure when testing. Don't give up till you find it.

Since we don't know the layout of your trailer, specific advise of any use is hard to give.

2shays3712 · Answer

Have you driven in the rain lately? Our Montana gets about a gallon of clear water when we drive in hard rain.  Placed small hole in low point of underbelly.  Problem solved.  Be sure water isn't coming from someplace else though.

slownsy · Answer

2Shays3712 why don't you read his post, not driven in rain. As for your Montana a hole at low point has not fixed the issue, your insulation is ruined and usles when wet.Frank.

acampingwewillg · Answer

I had an issue like this that took me awhile to tract down. So not to bore you, it ended up being a fitting on my water pump. My water pump was placed under the upper flooring in the bathroom vanity(my MH has a step up from kitchen to bath ) thus causing the water to travel down under the floor and then eventually end up soaking the compartments. I finally moved said water pump to make it easier to service and keep my eye on. Good Luck with yours.

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water in the underbelly

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