For questions generally relating to the unwanted permeation of water or other liquid, indoor/outdoor air, or fuel gas through a barrier designed to contain it, including identification, repair, and prevention techniques, tools and materials.

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1answer
169 views

Exhaust fan leaking from elbow joint connected to the ceiling

I have a metal elbow joint that is leaking. It is connected to an exhaust fan in the bathroom and runs to the roof. What can I wrap the elbow with to stop the leak?
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1answer
890 views

How can I stop this downspout leak?

The image is outside of my house where the down drain leads away from the house. The water flows in the direction of the arrows, and leak occurs where the "T" connector connects to the outlet. I tried ...
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1answer
1k views

What could cause water to come up from the bottom (upwards) through the tundish?

I have an oil-powered boiler along with a water cylinder which has been installed in our home for a number of years by some previous owner. We've been here a couple of years without a hitch. Just the ...
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2answers
44 views

Mysterious toilet leak

We noticed water dripping down the wall below the toilet on the 2nd floor. I assumed it was a leak in the wax ring, especially because the toilet had become slightly loose and rocked slightly when sat ...
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1answer
42 views

What is this piece inside the spigot supply hole, and what is it used for?

I'm watching videos online describing how to fix a leaky Delta kitchen faucet. As I'm following the instructions I encounter an odd hitch. Where, according to the video, there should be an empty and ...
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3answers
111 views

Leakage in my pipes, how to densify/seal?

I've never built with pipes before so maybe I'd need some general advice regarding leakage. On a specific note, I've built a system (see picture) where it leaks practically everywhere. I've sealed it ...
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1answer
51 views

How do I get my faucet handle off?

I've been trying to get to the cartridge in my bathroom sink faucet handle. I took off the top part, but in order to get the cartridge out it looks like I have to take off the bottom part as well. ...
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2answers
105 views

Leaking roof valley strategy

UPDATE: New album with additional photos here: http://imgur.com/a/RGfrP My parent's house has a pretty bad leak that has been going for a few years. Because of money and other issues with the house ...
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2answers
89 views

How to fix a faucet that drips unless we turn it extremely tightly?

We started to notice that the hot water bathroom sink faucet still drips after we turn it with the normal amount of force, but if we twist it harder it would stop. This problem exacerbated and it ...
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2answers
81 views

Reducing a 3/4“ Male Flare to a 1/2” Male Flare

I currently have 1/2" hose and female flare fittings that I need to connect to a larger 3/4" flare. I went to a local plumbing supply store and the set of parts they gave me seems a little excessive ...
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1answer
127 views

I have two roof drains, can I seal one of them?

My house has a flat roof and leaks, mostly directly underneath the drains. I've had problems with leaking around the drains since I've owned the house, mostly dripping, but over time it's turned ...
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3answers
328 views

Insulating/preventing heat transfer on non-IC rated recessed lights

I recently bought a thermal leak detector and discovered that my recessed lights upstairs are leaking a lot of heat and causing the upstairs to be uncomfortable and hard to cool. This is the brand ...
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2answers
108 views

Leaking Humidifier

We have a Honeywell whole-house humidifier attached to the duct directly above the heating element/electronics of our furnace. A few possible pertinent facts: The water intake is attached via a ...
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4answers
12k views

dripping sound inside wall

I'll try to get everything in here, yet be concise. This is a 3-story building, plus basement/underground parking. I'm on the 2nd floor, studio. Same layout above and below. Exterior wall to ...
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1answer
302 views

Is that a leak from roof into my ceiling?

I found a spot into my ceiling that was not there before. Spot looks like this. We had rain last night and i am worried if there is a leakage in the roof. This is what is on top of it. Is this ...
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1answer
260 views

What do I need to fix this leaky sink?

My sink started leaking - it looks like I need to replace all of the seal/gasket type things between the basin and the garbage disposal. Top side: Bottom side: I am guessing that the steel part ...
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3answers
3k views

What could be causing this leaky evaporator problem?

My apologizes if I do not know the correct terminology for some of the parts. I will try my best though. We have a Trane A/C system that is causing us a headache. It is causing water damage in our ...
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1answer
4k views

How do I deal with a leaking toilet cistern inlet pipe?

Recently there's been an odd, damp smell coming from one of our bathrooms. On further inspection, there seems to be a leak on this pipe where it connects to the bowl (where the little red arrow is). ...
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1answer
513 views

Should I be concerned about rusty nails just inside an outer wall?

Last year I nailed down the linoleum in my pantry with small brads because it was curling badly. This year during spring cleaning I noticed that the nails on the edge near the outer wall of the house ...
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2answers
2k views

What should be cleaned or examined after an air conditioner drain pipe leak?

The other day, we found some water on the floor in our utility room. After some research and investigation, we discovered that the drain pipe from the central air unit was blocked. We were able to use ...
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1answer
2k views

Toilet Supply Line and Valve Leaking

I had an issue with my bathroom flooding, so I emptied out the toilet (turned off the valve and flushed until it was empty). Then after 2-3 days, the toilet backed up. Yech. Anyway, I re-opened the ...
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1answer
728 views

What type of mortar would I use to seal cracks in our chimney?

We've got a brick chimney that's ~25 years old and it's got a quite a few cracks in the mortar (some hairline, some as thick is a quarter). What's the best way to seal all those cracks? I assume ...
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1answer
99 views

Home-made joint for a top window

I have some sort of artisanal, metal, top oriented, window that essentially serves as a light well (but the room is almost completey dark, the main door is covered by a curtain because my girl friend ...
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1answer
31 views

Hot/Cold Water Faucet Dripping

I have a water heating system in my kitchen sink (picture below) that is about 4 years old. All of a sudden the faucet is dripping water. I am trying to figure out how to fix it. I tried cleaning ...
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1answer
21 views

Leaky garage when it rains

When it rains, I have two leaks in my garage. I have had people look for this leak, but they can't seem to find it. I don't know if it's my windows or roof. Who should I call to help me with this ...
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1answer
47 views

Fix leak between seal and shower door joint

Anyone got any suggestions for sealing this gap up? The problem is because of the door joint, the top seal can't work all the way down, but the bottom seal can't move all the way flush because ...
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1answer
52 views

faucet (grohe arden?) leak. how do i remove the handle, get to the O ring

Got a 2 handle bathroom faucet that seems to be leaking. I think it is a Grohe Arden (I am not the original owner of the house and the faucet is over 10 yrs old). The only place I can see Grohe ...
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1answer
31 views

How can I figure out exactly where a bathroom leak is coming from?

There's a small amount of water at the lowest point on my bathroom floor. It looks clear and doesn't have a smell. Lately, it's been showing up every day, whether anyone's taken a shower or not. ...
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1answer
47 views

Wall leaks due to rotten wood in footer!

My home was built in 1979, and I have a small leak in the basement. It appears to me that the water is coming from a piece of 1x4 that is embedded in the footer, presumably this wood goes all the way ...
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1answer
64 views

Options for fixing leaking polybutylene water service line

The water service line going to our house is leaking. The leak is originating from our lawn down to the street. The plumbers who have looked at it are saying that our pipe is made of polybutylene, ...
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1answer
539 views

Ceiling leaks When it Rains, Roof Looks Good

My ceiling drips water sometimes when it rains (especially when it rains hard). It seems inconsistent though, so I think that it may have something to do with the angle at which the rain comes in. The ...
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1answer
88 views

Can a tiny leak get worse?

I replaced my shower arm with one that has a universal 1/2" male end so I could install a Culligan water filter showerhead. I did a fair amount of research beforehand and made sure to teflon tape the ...
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1answer
67 views

Plastic shower pan about to crack. Any preventive measures to take before it is too late?

Recently our shower pan started to make really loud, cracking sounds when we step on it. I feel that it will crack, if we don't take any action. The paint has already come off slightly in the places ...
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1answer
55 views

How to handle vanity replacement when finish materials do not continue behind existing unit?

I had a plumbing leak under my bathroom sink that soaked the vanity before it was discovered and the water shut off. The vanity is cheap crap made out of particleboard that has swelled up like a ...
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2answers
724 views

Honeywell Humidifier Leaking Near Overflow Tube

My humidifier is leaking. It is leaking at the drain assembly. The assembly itself has some designed openings that don't make much sense to me. The water is collecting there and dripping out ...
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1answer
4k views

A/C Air Handler Leaking Water Everywhere

I have a relatively old air handler that has worked fine for many years. Just recently, it started leaking water everywhere, and it seems to be seeping from inside the base of the air handler itself ...
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1answer
79 views

How to find source of dripping drain pipe?

I have an older house (1920s) it's two stories, although the second story was probably the attic originally. I used to live in it, but now I rent it and live nearby. There is a pipe that sticks out ...
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1answer
2k views

Does water in the water heater drip pan mean my heater is bad?

I recently noticed my drip pan had about a half-inch of water in it. I could find no water leaks around the fittings or valves. The water is slowly evaporating--very dry climate area--and the water ...
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1answer
72 views

How can I repair a kitchen sink that is leaking from both the handle and the underneath cabinet?

My kitchen sink is a single-handle, ball-type faucet. Lately it has been leaking from the base of the handle when the water is running, and when that happens water also drips beneath the sink. Is it ...
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1answer
215 views

Is this really inductive/capacitive coupling, and is this remediation practical?

I have replaced some 25W light bulbs with 4W LED-filament bulbs with 2700K emission. The light is equivalent if not superior, and 25W incandescent bulbs are becoming increasingly difficult to find. ...
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1answer
1k views

Leak between plastic elbow joint and copper pipe

I replaced a plastic elbow joint which had a crack in it. One end of the elbow has a PVC pipe fitted into it, and the other end is copper, which connects to an outside tap. I replaced the plastic ...
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1answer
450 views

How can I keep my neighbors water from leaking through a wall?

tldr: How can I, (temporarily and quickly), keep at least some amount of leaking water dammed and away from a wall? I live in a three unit condo. In the basement, there is a cheaply constructed wall ...
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1answer
146 views

How can I repair this rotted section of wood siding?

I have a section of wood siding that is soft and rotting. Complicating matters (and possibly causing the issue) is the placement of the seating area of the deck. The previous owners built a privacy ...
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1answer
1k views

What's the most cost effective solution for repairing a slab leak?

I live in Phoenix in a 1400 sqft home that was built in 1973, single story, brick and frame. A few days ago we experienced a slab leak in our guest bathroom, and we're currently entertaining bids to ...
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1answer
146 views

How to fix a minor leak in situ

I have an Intex swimming pool and there is a minor leak at the outlet/strainer grid as petroleum jelly was not applied during installation. The obvious solution is to drain, rectify and re-fill, but ...
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1answer
568 views

What could cause my water tank to leak only when I turn off the main water supply?

I travel quite a bit and so leave my water heater breaker off - as I travel for extended periods (months). In the past I used to leave the main water valve (near the meter) on - and would turn off ...
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1answer
82 views

What should I do about cracks in the cement pan for a roll-in shower?

We are installing a roll-in shower. We poured the floor and after 2 days it has several cracks in it. I am not sure if they are all the way through. Is there any way to fix this or do we have to ...
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2answers
97 views

How to stop this small roof from leaking?

We have water stains in the ceiling drywall underneath this small section of roof. I suspect it's due to the loose metal that's on top of the shingles. The fasteners on the top of the metal are ...
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1answer
74 views

What is this part of the heating system, and how can I stop it from leaking?

I bought a quite old house, and I found on the attic a thing that's part of the central heating, and it's leaking water. Not a lot, but enough to soak through to the floor below. Pictures: . I ...
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2answers
2k views

How do I seal a leak from my overhead tank filled with water without draining the tank?

I need help! How do I seal a leak from my overhead tank filled with water with out throwing away or draining the tank? My tank is made from steel.