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Old 12-02-2013, 11:18 PM   #16
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Slow plumbing leak or roof


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Yeah, it sure sounds like plumbing. Tomorrow I am shutting all the water to the house off for at least 6 hours, ala ohmike's suggestion, and see if that stucco over the patio stops leaking. The good news is if I have to get into that exterior wall we are getting ready to have that room painted anyway.

If it's not plumbing, I can only think that a large amount of rain water would have had to collected somewhere and be slowly migrating to those holes and out.

After checking to see if the leak stops several hours after shutting down the water to the house, should it still be leaking I may cut an inspection hole in the drywall beneath the pot shelf and see if I can see anything.
When you shut the water off, drain off the pressure too by opening a low faucet, hot and cold.
You could always get a small inspection camera into the wall cavity where you suspect a leak- You might get lucky and see something.

I fixed a pin hole in a copper line this week caused by an pin nail shot through some trim and drywall 6 mths. ago. No leak showed up until the nail rusted out....

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Old 12-03-2013, 06:10 AM   #17
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Slow plumbing leak or roof


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I may cut an inspection hole in the drywall beneath the pot shelf and see if I can see anything.
SHould of been your first step
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Old 12-03-2013, 11:59 AM   #18
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Slow plumbing leak or roof


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SHould of been your first step
The problem was first noticed the morning after 2 days of hard rain with high winds on the end of it all so I suspected water intrusion via the roof.
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Old 12-03-2013, 12:09 PM   #19
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Slow plumbing leak or roof


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When you shut the water off, drain off the pressure too by opening a low faucet, hot and cold.
You could always get a small inspection camera into the wall cavity where you suspect a leak- You might get lucky and see something.

I fixed a pin hole in a copper line this week caused by an pin nail shot through some trim and drywall 6 mths. ago. No leak showed up until the nail rusted out....
I usually open a downstairs faucet but hadn't thought of that this time. That camera trick is a good idea that I also once used to check for a subfloor leak but had forgotten. Thanks.

I can't hear anything (yet) but some neighbors with the exact model have had leaks in the shower piping which is also located very near the area with the dripping. Fortunately, it isn't too much trouble to cut an inspection hole in the dw on one side of that wall , which is soon to be repainted.
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Old 12-03-2013, 06:48 PM   #20
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Slow plumbing leak or roof


Looks like it isn't a roof leak but plumbing. After shutting all water to the house off, and opening up the downstairs taps, I left for 4+ hours and when I came back the dripping was all but stopped. Now I am going to turn the water back on, but not run anything upstairs. My thinking is that if the leak returns it is a pressurized line and not a waste line.

The dripping was down to 1 drop every 58 seconds. Turned the water to the house back on. Within 5 minutes it was dripping every 4 seconds. Nothing was ran and no toilets flushed upstairs since this morning.

Last edited by Klawman; 12-03-2013 at 07:12 PM.
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Old 12-03-2013, 07:33 PM   #21
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Slow plumbing leak or roof


Good news! (Sort of) Plumbing repairs are usually cheaper than having your tile roof or stucco fixed----Now the troubleshooting is concentrated on the upstairs plumbing---
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Old 12-03-2013, 07:38 PM   #22
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Slow plumbing leak or roof


Is there a chance the leak is in the joist bay- below the floor?
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Old 12-03-2013, 07:44 PM   #23
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Slow plumbing leak or roof


You just saved $$$$, you didnt have to call a roofer.

I see a lot of leaks that turn out to be non roof related. I put the roof on so they call, i should charge for my diagnosis but they already bought a roof and id feel bad charging them. Of course thats for local stuff, i'm charging you if your out of my area or not my roof install.
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Old 12-03-2013, 07:57 PM   #24
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Is there a chance the leak is in the joist bay- below the floor?
That is always possible. The bottom of the joist bay is 1.2" dry wall and I recently closed up an access hole in it but cannot imagine that the leak is coming from there. Not only did I check it for a drop of moisture before closing, it is so far away that for this much water to run across the room and down to where the dripping is going on I am pretty certain I would see a damp spot on the family room/kitchen ceiling.
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Old 12-03-2013, 08:01 PM   #25
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Slow plumbing leak or roof


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You just saved $$$$, you didnt have to call a roofer.

I see a lot of leaks that turn out to be non roof related. I put the roof on so they call, i should charge for my diagnosis but they already bought a roof and id feel bad charging them. Of course thats for local stuff, i'm charging you if your out of my area or not my roof install.
You should charge. I was just about to call you and would expect you to charge; especially if you didn't get a job making it worth your while.
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Old 12-03-2013, 08:01 PM   #26
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Have you done any work recently above the area that is leaking?

I'm not sure if this would help--but a simple pin type moisture meter is a handy tool for checking for damp drywall--I have used that for tracking down siding/window leaks.
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Old 12-03-2013, 08:13 PM   #27
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Slow plumbing leak or roof


Not this time Mike. I thought of the repair of the bathroom floor which ended up with the tub being replaced and the shower manifold swapped out, and then I put a dry wall screw in the waste line when closing the hole a plumber needed to correct the waste line connection the handy man botched, but that is all way across on the opposite side of the house. that was a FNG nightmare (with an emergency heart procedure in the middle of it all) which is why I hired the FNG handyman as I couldn't finish the job).

I was thinking of renting some kind of leak detector and had never heard of a pin meter. I may look into that.

There hasn't been any work over that area or near it for more than 10 years. There is one thing that I have been wondering about and it is the water supply line for the toilet located within a foot or two of the where the water is dripping. This is the same water supply line that wasn't snugged down and the leak from the connection was the reason the holes in the bottom of the stucco over hang were drilled some 6 months ago. I wonder if tightening down that pipe could of somehow weakened the supply line behind the drywall.

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Old 12-03-2013, 08:13 PM   #28
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It's 25 degrees and dropping here- I'd love to come down and knock a hole in your wall

A couple of serious suggestions- I don't know what the plumbing wall looks like:

You could take your water test a step further- turn the water heater off and leave the cold on- this might help isolate the pipe.

Pull the trim plate of the tub/shower and check the valve for leaks

The little 18 gauge nail leak I dealt with I could actually hear it inside the wall- but my ear was almost touching the wall
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Old 12-03-2013, 08:24 PM   #29
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Slow plumbing leak or roof


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It's 25 degrees and dropping here- I'd love to come down and knock a hole in your wall

A couple of serious suggestions- I don't know what the plumbing wall looks like:

You could take your water test a step further- turn the water heater off and leave the cold on- this might help isolate the pipe.

Pull the trim plate of the tub/shower and check the valve for leaks

The little 18 gauge nail leak I dealt with I could actually hear it inside the wall- but my ear was almost touching the wall
Those are good tips. I was wondering about how I might try to eliminate as many pipes as possible and shutting off the hot water is simple enough to do.

Also, that trim plate is easy to get off and I have had it off years agi, but hadn't thought of it. I may be able to (s)ee or hear quite a lot with it off.

I like easy things.

Last edited by Klawman; 12-03-2013 at 09:03 PM.
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Old 12-04-2013, 01:47 PM   #30
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Slow plumbing leak or roof


I removed the shower control face plate and heard nothing in the wall. Early on I suspected the toilet located very near the dripping. It is the same one to which a few months ago the water supply line wasn't tightened and there was a minor flooding that led to those holes being drilled in the bottom of the stucco.

That toilet has had a steady dripping sound that seems to be beneath the bowl (not into the bowl) and not in the tank. Nothing is on the tile on which the bowl sits. (I know never listed to anyone at HD had me convinced it was just water occasionally shooting up onto the bottom of the tank lid and dripping. I don't think so.)

I shut of the water to that toilet at the nib coming out of the wall. An hour later we are down to barely a drop.

I am pulling that toilet to see what I can see. I suspect that there may be a hairline crack in the bottom of the bowl that is dripping down somewhere that is covered by the base of the pedestal. Fortunately this toilet has easy access.

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