Community Forums

mrsportys · 03-09-2018, 12:14 PM

Open the bottom cabinet in the main bathroom and the felt on the base always seems wet.
Pipes underneath are dry when turning the faucet on. The joint between the cabinet top and back splash needs caulking but the amount of water below doesn’t justify the few splash drops.
Shower overspill? Nope not that. No other water connections below. The hot and cold water pipes below are dry yet at the base on the cold, blue pipe wet.
Took cover off, pipe goes below, dry. So water has to be coming from somewhere.
Under rv in back dry....
I believe roof seals are good...
Appreciate any thoughts...

neub · 03-09-2018, 12:27 PM

I don't know your waste pumping system whether or not you have a p-trap on the sink. On our old coach we had dampness under the sink which I traced to a loose p-trap. Only was able to spot it after I filled the sink and pulled the plug.

lynch763 · 03-09-2018, 12:42 PM

I had this problem twice... the first time I finally found a leaking fitting... the second one dumbfounded me. I couldn't find anything... a few days later I found a mostly empty gallon jug of water --- with a crack towards the bottom!

RM travelers · 03-09-2018, 05:59 PM

Quote:

Originally Posted by mrsportys

Open the bottom cabinet in the main bathroom and the felt on the base always seems wet.
Pipes underneath are dry when turning the faucet on. The joint between the cabinet top and back splash needs caulking but the amount of water below doesn’t justify the few splash drops.
Shower overspill? Nope not that. No other water connections below. The hot and cold water pipes below are dry yet at the base on the cold, blue pipe wet.
Took cover off, pipe goes below, dry. So water has to be coming from somewhere.
Under rv in back dry....
I believe roof seals are good...
Appreciate any thoughts...

Our Bounder 33C had water leak at bathroom sink, only after using slower. Took panel off under sink & no leaking pipes. Had at dealer twice, they said they sealed shower. Still was leaking. I sealed all glass & frame areas, & still leaked. Found glass frame has groove in the middle, sealed all those & no more leaks. Also kitchen under sink had water, just after warranty was up. Found sink was loose from counter top. Unscrewed sink fasteners just enough for a gap to reseal all around sink, then tightened down sink fasteners, all good now.

16bounder · 03-15-2018, 04:59 PM

Have a '16 35K and have noticed the same, but ONLY when temps take a dive. Thus a "cold" water leak, when temps get back to nice/normal no more issue. Are you in a COLD climate?

Jwicka · 03-20-2018, 07:28 AM

I had same problem with my 2017 back to dealer twice still wet . No water was visible on lines but when I took apart the fittings I found a washer was not seating properly and fixed that alls been fine. Was such a small leak that over time it would get wet

mrsportys · 03-20-2018, 08:43 AM

And it seems to be working, sealed the backsplash area and around and under the sink, so far so good!
Thanks to all!

mrsportys · 03-21-2018, 07:22 AM

Quote:

Originally Posted by mrsportys

And it seems to be working, sealed the backsplash area and around and under the sink, so far so good!
Thanks to all!

Wet again. This time I’ll take apart the faucet and see if all the gaskets are in place.

rd2callahan · 03-28-2018, 08:30 AM

Check the lock ring that holds the rubber gasket to seal the drain where it leaves the sink underneath. They can vibrate loose sometimes and if they didn't use plumbers putty under the lip on the top side then then it can cause it to leak when the water fills past the drain lip. That is an easy fix but if that's the problem make sure you put a thin bead of plumbers putty under the lip so it seals on top and bottom when the lockring is tightened up. Good luck.