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Q&A on types of leaks in water supply or drain piping:
Frequently-asked questions about diagnosing the type and source and cause of leaks in plumbing supply or drain piping.
This article series describes the different types of plumbing leaks that can occur in building supply piping or drain piping. Knowing just what kind of leak is occurring in a building helps pinpoint the problem and also helps specify the necessary plumbing repair.
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These questions & answers about the types of plumbing leaks and how to find and repair them were posted originally at LEAK TYPES, WATER SUPPLY or DRAIN PIPES
On 2017-10-10 by (mod) - tracing an apparent plumbing leak back outside to a roof or gutter problem
As the water appeared after a heavy rain I would be looking for a roof leak or a gutter overflow that leaks back into the eaves and into the exterior wall
On 2017-10-10 by Lisa
we have a water damage on a wall on first floor bathroom. Plumber thought upstairs bathroom was cause and sealed upstairs bathtub precautionary. But after last storm (heavy rain) we noticed wall being wet again.
Room above bathroom is dry! Bathroom is not at an outside wall - garage is next to it. No roof above and no other wet spot anywhere. We cannot find the problem. Any ideas?
On 2017-10-03 by Seanomac
Sorry didnt spell check. It leaks when the cold water facet in the bathroom is on
Plumber installed new hot water heater and now I have a cold water pipe leaking in the basement. Here's the weird thing, it only makes when the cold facet in the bathroom is on! Any ideas?
On 2017-09-09 by Carolyn
I've notice a steady, but quiet humming noise when I turn off the faucet on my in bath sink. The faucet has been a problem since I replaced the cartridge. It takes several turns to turn around to turn it off, and than is out of line. Could the noise be related to the defective faucet?
On 2017-07-01 by (mod) - what's a deck drain?
Sorry to be a bit obtuse but I don't understand your situation nor what you mean by "deck drain" - perhaps you can use the page top or bottom CONTACT link to send me images of what you're asking about.
On 2017-07-01 by mathew ho
The deck drain off my master bedroom is leaking when water is flowing thru the drain. The copper drain fitting is fitted into a PVC pipe drain. the flooring is new membrane so is ok. The joint between the copper drain and the PVC pipe...how is it connected? Is there a gasket or 0 ring between the copper and PVC piping drain when the contractor installed the new membrane flooring?
On 2017-04-26 by (mod) - causes of formation of blue oxide on copper water pipes
Leaks along a copper pipe OR condensate on the (cold water) copper supply pipe can cause it to form an oxide that is blue in color.
Copper does not literally "rot" since "rot" is confined to organic materials (dead trees). But copper can be damaged by corrosive water or it can be corroded by any external leak or water source.
If you see the problem on both hot and cold pipes and throughout the building I'd suspect corrosive water OR a batch of defective copper piping.
If you see the problem just in specific areas I'd look for leaks or a water source.
Use the page top or bottom CONTACT link to send me some sharp photos and I can comment further.
On 2017-04-26 by Ron
My copper water pipe just inside the home has turned navy blue. Not patina blue/green. What is causing it?
Also a clang that last for a second every 10 to 20 minutes is happening and now we have no idea what it is.
A plumber said the blue color our pipes are rotting and we need all new pipes!!! The house is immaculate and built in 2000. The copper is is Navy blue for about 10 feet and then goes back to copper. HELP
On 2017-04-25 2 by (mod) - leaks at the well casing
Unfortunately leaks out of a well worry me that under changing conditions there can also be leaks into the well at the same point, contaminating the water.
You want your well plumber to inspect the well piping and casing to find the leak - both can be repaired.
On 2017-04-25 by Lyle
The above groung housing iis leaking 4 inch well
On 2016-06-21 by (mod) - sewage leaks into a building are unsafe
It sounds as if there is sewage effluent leaking into your building. If so that's certainly not healthy, and risks bacterial and other health hazards.
There could also be a potentially dangerous sewer gas hazard. If the landlord is not going to address the problem You may need to ask for advice and help from your health department.
On 2016-06-21 by Jill Lund
A crack in the basement wall above & below the outgoing sewer pipe began leaking. This crack is fairly new. The landlord dug outside where the pipe comes out of the building. The hole was filled with water and the cast iron pipe had a 4-6 inch crack. We could also see a crack on the outside foundation like the inside.
This is a four Plex building. On the opposite side of the building is a 2 foot crack in the asphalt drive starting from the foundation out. This is new too. That crack looks like we had an earthquake and is about 1-2 inches wide.
What is going on here. Landlord is putting off fixing it. My basement smells like pee and I'm worried the foundation may cave in.
On 2016-05-01 by RZ
I had a well water & pump engineer come out, he said that my well & pump is good, the pump gradually shuts off at 50 PSI then stabilizes at 45 PSI, he said there must be a leak after the pump near the house
. I do see a leaking water main shut off valve outside by the garage. I am changing out my sediment filter as well.
The pipes around the water softner & sediment filter look like spaghetti. Do you think that the shut off valve & sediment filter can suck air into the water lines & toilets? When I open the faucet at the bladder tank air & water shoots out?
On 2015-12-21 by (mod) - leaks in freezing weather
That's a new leak on me, Calvin. I speculate that you have a drain that's frozen or backing up.
On 2015-12-20 15:42:03.969751 by Calvin Lloyd
Why does the plumbing under my kitchen sink leaks when the weather is below 35 degrees?
Continue reading at LEAK TYPES, WATER SUPPLY or DRAIN PIPES or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.
Or see REPAIR BURST LEAKY PIPES
Or see LEAK CAUSES in WATER PIPING - what causes leaks in metal piping?
Or see WELL PIPING LEAK DIAGNOSIS - how to figure out if there is a leak in the well piping system
If you are de-winterizing or are thawing frozen piping see Thawing Frozen Pipes which addresses how to find frozen and burst pipe leaks in buildings without causing a catastrophe
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