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Question DetailsAsked on 2/19/2012

I have a dripping noise that I can hear in the floor of my mobile home.

This is a brand new mobile home. It was just hooked up in November. We have checked pipes in that area for leaks and have not found any. It sounds like drips from condensation? Sometimes you can here this drip noise as much as 48 in one minute.You can hear it up the vent pipe. The vent caps have been changed twice. We have checked the hot water tank, toilets, shower and sinks.Could it be coming from inside the sewer and echoing up the vent pipe? The guys from the park can't find the problem. Any suggestion?

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2 Answers


Is the problem recent or has it been there since the mobile home was set up? Have you checked to see if the meter usage reading changes when no water is used for a few hours? If so, try turning off the water to the home for several hours and evacuating the lines. If you do not hear the drip any longer and the meter didn't change while no water was being used it is probably not a supply line.

Some monile home companies don't check the slope on the sewage lines for consistency when they set them up. If there is a flat spot in any of the drain lines they can be slow to clear out and may drip after water has run through them as the water slowly falls to a lower point in the line. Can you hear the drip through the vent pipe on the roof? If so it's something to do with the drain lines. Is the dripping sound near a toilet. You could have a toilet that is slowly dripping into the pipe below, meaning the toilet is not set up correctly.

Since it's not summer I doubt the a/c condenser lines are the culprit but some heat pumps produce a little condensation on the lines as well. Check those to see if any is forming around them. If so it's a simple solution of repairing some missing insulation around the pipes. On the topic of insulation: are your water pipes insulated in the home. Even cold water pipes can "sweat" forming condensation around them while in use which then drips.

Lastly, are you sure the roof was flashed properly around the penetrations? Rain water can leak around vent pipes and follow them through the walls to a low point and then drip. Snow and ice will do this slowly and for hours or even days after the storm.

Your problem could really be a number of things. Use deductive reasoning and check the things i've mentioned. It's likely one of those. If you still can't find the problem call a plumber and tell him what you've ruled out so you aren't paying him to check the same things again.

Todd Shell
Todd's Home Services
San Antonio, Texas

Answered 8 years ago by Todd's Home Services


Is this drip I wonder the sound of pipe just expanding or rubbing in the hanger supports? On the money above!

Answered 8 years ago by owen klaus

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