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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15
votes
2answers
20k views

How do I fix a leaky toilet that only leaks from underneath?

I am noticing some water spots on my concrete in my (unfinished) basement. When I look up for the cause of the water I can see water dripping around the hole that is used for the sewer pipe for the ...
15
votes
2answers
573 views

1lb of cure is worth 10 tons of mold: DIY repair of a poorly sealed window? lots of photos herein

Preface I live in China. Construction is largely handled by unskilled migrants, and one cannot just call up a specialist contractor to fix a major issue. Problem I've got a window that was not ...
11
votes
4answers
6k views

How can I prevent spillage from my bathtub?

Let's set the scene: The horizontal surfaces of the bathtub in my apartment are flat. We have a double shower curtain (with the waterproof bit that hangs on the inside of the tub and the fabric bit ...
11
votes
3answers
11k views

How bad is it to have wet insulation?

With this recent blizzard we recently saw our ceiling lighting fixture leaking water (slow, about 1 drop every 5 minutes) I got up in the attic and saw that some snow had been apparently blown into ...
9
votes
5answers
3k views

How can I paint over a ceiling after there's been a leak?

We had a leak in our upstairs bathroom, about 2 weeks after we had a new ceiling put up and painted in the room below. It wasn't a major leak, but it caused quite a wide line to show up on the ...
8
votes
2answers
544 views

Fix a Leaky Faucet?

I have a Moen single handle kitchen faucet. When you lift the handle to start the water flow, water also flows out almost as fast from underneath the handle and floods my counter. I cannot figure ...
8
votes
1answer
2k views

How do I prevent this bath faucet from leaking while the shower is running?

Here's a photo of my setup: The hose and nozzle hanging down in the picture make up the shower head assembly (it is a hand shower that can hang up on the wall or be removed for directed use). ...
7
votes
3answers
2k views

Can teflon tape be used on a threaded joint behind a wall?

I'm remodeling my bathroom. Last night I took the cement board off the wall where the pipes run for the shower. One of the pipes that carries water to the shower was corroded. Upon further inspection, ...
7
votes
4answers
5k views

Is my shower drain leaking under the slab?

My wife & I renovated our master shower a couple years ago. About three months ago, we noticed the baseboards in the guest bathroom (on the other side of the wall from the master bath) were ...
6
votes
3answers
425 views

How do I repair a leaking toilet tank?

I replaced the flapper in my ceramic toilet tank and the leak from the tank into the bowl slowed, but it still leaks. What is the next step I should take to get rid of this leak?
6
votes
3answers
3k views

What do I do with a leaky roof in the middle of January?

I removed the ceiling Sheetrock and insulation during a bathroom remodel in my master bathroom on the 2nd floor of my house. I have snow on the roof that is melting and I found two small drips coming ...
6
votes
2answers
569 views

What are some ways to find a leak in a pipe?

I have a leak somewhere under my sink in the kitchen. I have a number of junctions/pipe/hoses there (6 lines), and one of them has a leak. It doesn't happen all the time, only when there is back ...
6
votes
2answers
6k views

How can I get low water pressure in sprinkler system fixed?

I have a new house that is still under warranty. Compared to at least two of my neighbors whose houses were built by the same builder and have very similar sprinkler systems, my sprinklers put out ...
6
votes
2answers
10k views

How can I repair a leaking water tank?

I have a leaking water tank here in Bombay, India. I'm looking for suggestions on how to repair it.The tank is a plastic Sintex water tank. There are cracks around a water pipe running into the side ...
6
votes
3answers
11k views

How can I fix a Moen faucet that is still leaking after replacing cartridge?

I had a leaky Moen faucet (Moen 4600) so I removed the old cartridge and replaced it with a new brass replacement cartridge (model 1200.) Since replacing the cartridge I now have a leak from the valve ...
6
votes
2answers
3k views

What can I do about high water pressure that is causing a leak?

One of our showers has an intermittent leak, and I've figured out that it happens when the hot water heater is on. There's no expansion tank on the cold supply side for our hot water tank, so I'm ...
6
votes
3answers
6k views

Does water dripping through my soffit indicate a problem?

When it rains, water drips through the soffit and along the inside face of the fascia. This picture shows the water dripping through, but when it rains harder sometimes there's more: My landlord ...
6
votes
3answers
349 views

How do I keep heavy rain from draining into my house?

The west side of our house is 2 stories high. We have 3 window wells on that side of the house. When we get heavy rains from the west blowing against the house, lets say 3 inches in an hour. The ...
5
votes
4answers
3k views

Water coming in through the walls of an old concrete garage

I recent bought a house with a detached garage, made of old concrete (high aggregate content) reinforced with steel rods and set into a hill. Built in 1938 or so; no waterproofing. Now that Boston ...
5
votes
1answer
886 views

How do I stop a leaking tub faucet?

This tub faucet (that is probably 20+ years old) has a pretty steady drip going and I'm not sure where to start to figuring out how to stop it. (apologies for the grainy photo...just had my the ...
5
votes
3answers
2k views

Mild water damage on drywall from leaky roof

We have a fairly new house (built in 1997). Cheap roof and we had a big windstorm a few years back that resulted in some lost shingles that I had patched -- no major problems. Recently we had a much ...
5
votes
4answers
1k views

How can I locate and repair a leak?

We recently bought a 100 year old house that stood uninhabited for 18 months prior to our move. Everything had been properly winterized for the cold winter months (Temperatures can reach -40 C) and ...
5
votes
1answer
722 views

Dishwasher air gap problem

Problem: When dishwasher drains it dumps water to the sink through the air gap. Problem started accuring 6 month after kitchen/sink/dishwasher was installed and used. What I tried: Opened the ...
5
votes
2answers
717 views

What would cause my dishwasher to leak when it starts filling?

my Maytag DW-2 dishwasher started leaking water from a small hole under, near the back and to the left whenever it starts filling with water. It must leak +-1 cup then stops leaking for the duration ...
5
votes
1answer
250 views

How do I diagnose an occasionally leaking dishwasher?

We are remodeling our kitchen, part of which will be replacing the vinyl flooring. When pulling out the vinyl and 1/4" plywood I found many water stains which appear to have started under my ...
5
votes
1answer
712 views

Why is my refrigerator leaking?

The make of the unit is GE and below is a link to a picture of the label on the back. There aren't any other markings anywhere. I'm guessing this is an older model. Here's a close-up of the ceiling ...
4
votes
3answers
8k views

Stuck, leaking water shutoff valve to toilet

The problem... I recently replaced the fill valve and the flapper in one of the toilets in my house. When I turned the water back on using the shutoff valve below the toilet, a slow drip had ...
4
votes
4answers
2k views

What to do with leaky sink?

Our kitchen sink has been slowly leaking for several months, and as of yesterday, it is finally leaking so bad we can't use it until it's fixed. I'm generally handy, but when it comes to plumbing of ...
4
votes
4answers
371 views

How can I add a piece of timber to my metal shed wall without creating a leak?

I have a garden shed with steel (powder coated) walls. I'd like to attach a piece of timber to the inside of the wall. I'll use the timber to attach hooks for hanging tools. I don't want the holes I ...
4
votes
3answers
793 views

How do I build a basement that does not leak when I have a high water level?

How do I insure a basement will not leak when the site has a high water level?
4
votes
2answers
2k views

What could cause a toilet to keep running?

I have an American Standard toilet I installed last year. I don't know much about plumbing, but I was able to install this toilet. It seems to function okay, except for what I think is a mechanical ...
4
votes
3answers
638 views

How can I repair/replace tires on a hand cart?

I have a few small hand-carts. One of them is the two wheel hand-truck/dolly, and one is a larger one on four wheels with an upright handle. Both have leaky tires. Some of the tires have a slow ...
4
votes
2answers
1k views

How do I fix a leaky spigot on a rain barrel?

I created a rain barrel using an old plastic 55 gallon barrel and a brass spigot. I drilled a half-inch hole in the side of the barrel for the spigot, wrapped some plumbers tape around the threads, ...
4
votes
2answers
2k views

Should I redo my bathroom shower or try to waterproof it?

We just had our bathroom redone (including built-in tiled shower). The shower tiles are now leaking through the wall into our living area. Our contractor suggested to just apply a waterproofing ...
4
votes
2answers
799 views

Did I just ruin the flange on our toilet?

The point where the elbow joint from our flushometer meets the toilet bowl has begun leaking (dripping, really) whenever we flush (so, whenever water passes through it). I jiggled it a bit and the ...
4
votes
3answers
12k views

How do I find the source of the water leaking through the ceiling?

I live in Minnesota in a single story rambler with full basement. In an upstairs corner bedroom I started noticing some water leaking in the closet ceiling a week or two ago (picture is current, it ...
4
votes
1answer
2k views

How do I seal a leaky roof and repair the minor ceiling damage it caused?

We recently had some very heavy rains and during the worst of it we had some leaks. When I noticed the problem, I went into my attic and found out that the leak was coming from around a vent in the ...
4
votes
1answer
501 views

Is my septic tank leaking?

I have a 1000 gal plastic septic tank about 25 ys old that drains into a seepage pit. When I am away for 3 weeks the water level drops about 6 inches below the output drain pipe. I fill it back up and ...
4
votes
1answer
2k views

Why won't my water heater stop filling?

I noticed tonight that my water heater appears to be trying to fill with cold water, but it won't stop. I can hear water flowing through the pipe, and the overflow drain pipe (white one just above the ...
4
votes
2answers
524 views

How do I take apart an older model bathroom faucet?

I'm trying to take apart a leaky bathroom faucet. I've isolated the leak to the cold valve, but I cannot figure out how to disassemble the faucet. I've watched several helpful videos and read ...
4
votes
2answers
20k views

Why does my washing machine leak only during the spin cycle?

For the second time in a month, I found that my washing machine had flooded the kitchen floor (and part of the basement via the hole for the water line to the fridge). The first time, I only ...
4
votes
2answers
2k views

What should I do about a central air duct leaking above my ceiling?

My closet ceiling is leaking a brown liquid. Right above it is an air duct for my central air. I think the liquid is dirty or rusty water that has accumulated in the duct. I can hear it dripping ...
4
votes
2answers
765 views

How do I fix this leaking tub faucet?

I have an old tub/shower with 3 handles in it (hot/cold/shower on) that are all twist knobs. The hot or cold can not fully disengage because they are a bit older and have some sediment built up in ...
4
votes
2answers
998 views

What is the cause of dishwasher vent leak?

My dishwasher has a vent in the top of the door which I suppose is opened during the dry cycle to allow steam/moisture to escape. Recently, after running a load of dishes, when I open the door, about ...
4
votes
1answer
264 views

What are the structural and health issues for a long-time slow-leaking toilet?

I recently discovered a very slow toilet leak (only when flushing), which has dampened the bathroom floor, and dripped onto the basement ceiling, where there is now a pretty mold spot. A restoration ...
4
votes
2answers
160 views

Are torch-on-roofs the best solution for a low pitched roof?

I have a low pitched metal roof and it is leaking. The roofer I spoke with says to stop the leaks they need to tear the metal off, put down plywood, and use a torch-on-roof system of roofing. He said ...
4
votes
1answer
405 views

What could be causing this leak near my chimney?

I had a new roof put on in 2010 and had no problems... recently I've noticed that I'm getting water in my house. Its coming down along side where my chimney is and making large bubbles in my walls. We ...
4
votes
1answer
680 views

How can I disassemble this old bathroom faucet to fix a leak, without damaging the decorative chrome piece?

Update 4: Once I followed Michael's suggestion I was able to remove the cartridge. Closest match was a Moen 1224, 131222. Inlet and outlet were very different, and rotation of valve was much greater ...
4
votes
2answers
833 views

How should I seal a shower base that is leaking?

I have a shower stall with a cement-like slab base. The shower base is ancient and has developed some cracks. The top surface has some sort of sealant which has worn away, with the result that water ...
4
votes
2answers
237 views

How much water is too much water underneath the basement concrete?

We are getting ready to install a new shower in our basement. When we had our house built about 8 yrs ago we asked to have a shower & toilet drains roughed in. I cut off the plastic cover for ...