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30 votes

How concerning is this water in my bathroom?

To directly answer the "question": Unless you live on a slip-n-slide, water coming out of the floor is very, very concerning. Although ... usually water will leak down into the floor, into ...
jay613's user avatar
  • 40.3k
26 votes

Accidently Glued PVC to threaded PVC and it Leaks

It is usually better to cut out that section and redo with couplings/other fittings as needed. PVC glue is more of a solvent and welds the pieces together. Any patch work fix will most likely be ...
crip659's user avatar
  • 25.6k
25 votes

damp line behind toilet

The mark could be from condensation on the cold water pipe. As the pipe warms, when not in use, condensation stops. If that is the cause, there likely would be condensation on the toilet tank. Some ...
DrMoishe Pippik's user avatar
16 votes

damp line behind toilet

Temporarily tape a piece of paper so it hangs loosely between cistern and wall. A sheet of newspaper would be fine. Intention is to figure out if the damp is coming from inside the wall, or from the ...
Criggie's user avatar
  • 10.7k
13 votes
Accepted

Rebuilt chimney still leaking

I'm judging by fuzzy photographs, but the flashing seems to have been done incorrectly. When done right, shingles and step flashing alternate such that any water running under one is still on top of ...
isherwood's user avatar
  • 140k
12 votes

What is the white residue on my concrete parking garage ceiling?

Oh, that's bad. That's the strength leaching out of your concrete by water moving through the slab. How that exactly happens is in this video here... but those substances are keeping your concrete ...
Harper - Reinstate Monica's user avatar
12 votes

Is this "leak" expected from a brand new sump pump?

This is one of those read-the-manual moments. "This pump uses an air evacuation method called a "weep hole". The weep hole allows air to escape the pump casting to prevent air lock. ...
Robert Chapin's user avatar
11 votes

How concerning is this water in my bathroom?

I wouldn't worry too much about mold. I'd worry about the level under the bathroom and the subfloor eventually rotting out. Yes toilet can leak underneath. Yes you can do it. First is to figure out ...
Fresh Codemonger's user avatar
9 votes

Are unions considered harmful to plumbing?

The IFGC doesn't allow unions in concealed spaces because of their leaking proneness. See the IFGC's 404.5 commentary. You're right to try avoiding their use, but you're not describing a concealed ...
popham's user avatar
  • 10.4k
8 votes

Is DIY water mitigation possible in my case?

The general rule on water damage is Make sure no additional water gets in Dry stuff out If damaged, do your best to replace it Most of the problems with water damage are long-term. Wood will rot, ...
Machavity's user avatar
  • 25.3k
8 votes

How concerning is this water in my bathroom?

Is this a serious concern for mold underneath the toilet and flooring? Mold can live anywhere there is moisture, food, and the correct environmental conditions. You have provided all three. So yes, ...
End Antisemitic Hate's user avatar
7 votes

How concerning is this water in my bathroom?

Something is leaking. It could be a bathroom fitting, it could be something inside the walls, it could be the roof! Is this a serious concern for mold underneath the toilet and flooring? It's worse ...
Jasen's user avatar
  • 21.6k
7 votes
Accepted

Why is my dishwasher leaking from the bottom despite tightening this connection?

Good picture -- and clearly, that brass input hose connector is crooked, i.e., cross-threaded. Reinstall it so it's not at an angle. If that doesn't fix it, then a rubber washer inside might now need ...
DrMoishe Pippik's user avatar
6 votes

Pipe under outdoor faucet leaking. Any ideas?

If the pipe itself is cracked and leaking, you replace the pipe itself, by unscrewing the spigot from the pipe and the pipe from the Tee fitting below. Such short sections of threaded pipe are called ...
Ecnerwal's user avatar
  • 220k
6 votes
Accepted

How sensitive are bathroom sink drain seals to very slight angles in the drain pipe?

The best solution would be to cut away the white PVC trap, install a trap adapter on the stub of pipe protruding from the wall a new slip-joint style trap and an extension tube, if necessary, for ...
Greg Hill's user avatar
  • 31.1k
5 votes
Accepted

Is DIY water mitigation possible in my case?

Remove all the stuff (like the false ceiling and the wood paneling/drywall) that is wet and can be replaced easily as its a barrier to let the structure dry. The structural wood is wet, and wetrot/...
ChucktheDuck's user avatar
5 votes

Why do I hear water running through my water heater until the breaker is turned off?

Bad water heater! Seems likely that the temperature/pressure relief valve to release excessively hot or over-pressure water from the water heater had actuated, since you mention that the water is ...
Ecnerwal's user avatar
  • 220k
5 votes

Are unions considered harmful to plumbing?

Unions are fine. You see them in plumbing work all the time. It's impossible to plumb some items without a union. What you want to avoid is unnecessary unions. If there's a way to plumb it with fewer ...
KMJ's user avatar
  • 12k
5 votes

Rebuilt chimney still leaking

Isherwood is correct - this looks like very poor flashing. I would also add that the lead has not been well formed into the corner. If you are exposed to driving rain in high wind this would ...
manicseagull's user avatar
5 votes

How can I fix this leak in my kitchen sink?

"Buy a new one that fits this sink correctly, or isn't damaged" seems like the fix, though I suppose the "stack 3 gaskets and hope" approach would be popular with some folks. If ...
Ecnerwal's user avatar
  • 220k
4 votes

How do I remove an immobile copper tee fitting in close quarters

Perhaps it won't be the last pin hole. I'd cut out an entire segment and replace it with PEX. I'd reconnect the new segment with PEX to copper compression fittings. Should the outgoing pipe need more ...
Martin's user avatar
  • 3,074
4 votes

garage floor: damp

First, check for any water landing near the edges of the foundation. Gutter problems or water infiltration into the wall can result in a wet slab. Check for these problems first. They're often cheap ...
KMJ's user avatar
  • 12k
4 votes
Accepted

How to elongate IKEA sink downspout to reach P trap U pipe?

Look for a "Slip-Joint Extension Tube" at your local hardware store. This is a very common part. The standard sizes are 1.25" and 1.5". Get one of each if unsure.
Robert Chapin's user avatar
4 votes

What should be changed in this well-source residential water system to prevent future leaks?

Other than "two bad valves in a row" (try to find one not made in China for the third time - which may take some hunting, these days) the main thing that seems like it would contribute to ...
Ecnerwal's user avatar
  • 220k
4 votes

Ceiling under upstairs bathroom leaking water

First I would check thoroughly to make sure that you don't have water coming out of the shower onto a wall or floor. Maybe if there's a tub in the shower, water is collecting on the lip of the tub ...
BowlOfRed's user avatar
  • 1,151
3 votes

Who do I hire to repair damage from a leak from the deck into the house?

A general would probably be your best bet, as you'll need to pull up some parts of the deck to get access below, open up the roof (likely) or ceiling from below, possibly install/repair plumbing for ...
FreeMan's user avatar
  • 47.4k
3 votes

Leak issue, downstairs neighbor

You seem to be occupying the same building as another person. Take it from Ukraine and Russia: The first law of being neighbors is don't be a selfish jerk. You are saying "I don't want ANY ...
Harper - Reinstate Monica's user avatar
3 votes

Leak issue, downstairs neighbor

Neither you nor your downstairs neighbor is right, because nobody knows where the leak is coming from. It could very well be your toilet (albeit unlikely), or the roof. The thing with leaks is that ...
Cheery's user avatar
  • 6,694
3 votes
Accepted

Leak in 3/8 refrigerant line and replacement

you (or at least someone qualified to work on refrigeration systems in your jurisdiction) can replace just a small section of the lineset to fix a leak. There is no need to touch the other line when ...
ratchet freak's user avatar
3 votes

garage floor: damp

Vague question yields broad answer... Stop or remove the water before it gets in. That might mean: fixing the grading around the garage and/or house (unclear if it's attached or detached) so the ...
Ecnerwal's user avatar
  • 220k

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