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water leak

A leak is a way (usually an opening) for fluid to escape a container or fluid-containing system, such as a tank or a ship's hull, through which the contents of the container can escape or outside matter can enter the container. Leaks are usually unintended and therefore undesired. The word leak usually refers to a gradual loss; a sudden loss is usually called a spill.
The matter leaking in or out can be gas, liquid, a highly viscous paste, or even a solid such as a powdered or granular solid or other solid particles.
Sometimes the word "leak" is used in a figurative sense. For example, in a news leak secret information becomes public.
According to ASTM D7053-17, water leakage is the passage of (liquid) water through a material or system designed to prevent passage of water.

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  1. S

    Water Leak from Plastic Water Tank in Loft next to the pipe Connections

    Hi, Woke up this morning to find water dripping from the ceiling. Had a look in the loft and its coming from the point where one of the pipes connects to the plastic water tank towards the bottom of the tank. Please see photo. Any idea how we can fix this?
  2. B

    Water leak through outside cavity wall.

    Hi, hope I am in the right place. This leak is on our entry wall comes through the mortar when the toilet flushes, bathroom sink taps running and the kitchen taps downstairs. There is no leak inside house. Any ideas please would be appreciated. Thanks Bonny
  3. D

    Combi 30HE water leak

    Hi Folks, Any of you had grief with replacing leaking 'o'rings on the Baxi Combi/105HE main heatexchanger and secondary heatexchanger's? I've just replaced, for the second time, 'o'rings on the pipe between the main Hex and the Secondary Hex. No leaks when I left yet ovr a month down the line...
  4. J

    Water Leak.

    Got called to a job, Baxi Duotech pressure dropping, checked expansion vessel and was flat, re-pressurised to 1bar disconnected prv and tested up to temp, all fine, no leaks on boiler. left at that. Got a call back still dropping pressure, checked vessel again all ok, disconnected condensate to...
  5. G

    Boiler repair and sink water leak - help required in Feltham

    Hi, I have a Combi 30 HE boiler that has stopped working: no power or noise, totally dead. I also have a water leak under the kitchen sink. Can anyone help with either or both of these problems? Looking for someone trustworthy as I have been burnt before. I'm in Feltham, near Heathrow. Glad...
  6. Q

    from water leak to low then high pressure

    Worcester greenstar heatslave 18/25 internal oil boiler. Last week the pressure dropped very low over a few days, took door off, shone torch inside and big drip drip drip on water pipe, so I let it go cold and nipped up the nut. Good no more leak. But pressure rose quickly to 3 bar and I...
  7. H

    water leak from base of bathroom sink

    I seem to get water leaking from the bottom of my bathroom sink, it only seems to happen say when I have basin full of water to have a wash then when I pull the plug there seems to be water dripping from the base of sink onto floor, I cant seem to work out where the water is leaking from or how...
  8. N

    Insurance and water leak

    Hi there, Sorry this isn't exactly a plumbing question, but I need some advice! Last week, after I took a shower upstairs, I noticed some water coming through the ceiling in the kitchen (which is directly beneath the shower). I carried out a few tests, and deduced that it was not coming from...
  9. E

    Vokera 29HE Compact cold water leak - can I sort or call engineer?

    Hi, had my Vokera 29HE Compact serviced last month, but it's begun leaking cold water. Engineer says it may need a nut tightened, which I can do myself, or a new washer which means them coming out to look at. About a pint of water is escaping over night. Which nut is it I should try to...
  10. A

    Water Leak - into light fittings - help!

    Hello. This morning, around 09:00, the flat above me had a major issue with their bathroom tap - they couldn't switch it off so all that water ended up in my flat, joy! It came through both my bathroom light fitting and my kitchen light. I quickly switched my electricity off and called my...
  11. R

    Inaccessible Hot Water Leak

    Hi All. OK, I have a leak/weep from a compression fitting on a hot water pipe, looks like whoever installed it had plenty of fittings and not enough long pipe as I can't see any other reason for the fitting being there (straight thru). The problem is its location, its at floor level right...
  12. F

    greenstar 28i junior water leak

    Hi all ,wanting some urgent help if possible. Came home today to find my boiler dripping water (greenstar 28i junior) .I have removed the cover and dropped down the control flap and can see that water is coming out from a black plastic manifold ? situated on the right hand side right at the back...
  13. D

    Water Leak Conundrum - any advice welcome

    So..bear with me... the last few weeks I have gone research crazy on plumbing but am stumped and hoping you experts could shed some light/reassurance. I got a water meter installed last year and my bills doubled (just me and my daughter - went on a meter to save money). My meter runs constantly...
  14. S

    best water leak detection equipment.

    Hi Guys' I'm thinking of getting into the water leak detection business, What leak detection equipment you would recommend? And training etc. Thanks.
  15. C

    Water leak from HWSC

    Hello all I was called out yesterday to a water leak coming through a ceiling,it turned out to be the HWSC in the hotpress above.There is a constant trickle of water from the primary flow where at its joint with the essex flange.I have advised customer that as the cylinder is around 30 years...
  16. M

    Worcester Heatslave 20/25 Water Leak & Loss Of Pressure

    Hi, this is my first post on the forum , so i hope ive posted it in the correct place :-) I have a Heatslave 20/25 boiler and it has recently been losing pressure then yesterday i noticed a large quantity of water laying at the bottom of the unit. I took the top off the unit and noticed the...
  17. D

    Water Leak Vailant ECOmax 286 EH

    I have a leak on my Vailant. It appears to be coming from the bottom of the combustion chamber. I didn't want to go poking about inside without some advice. Is it likely to just be a seal on what I assume is just a sensor cable or should there not be water on the other side of there anyway...
  18. F

    water leak

    Got called out this morning to a leak. When i got to the job i was told the water was coming through where the smoke/heat detector was fitted on the ceiling. They had a bucket with a little bit of water in it. There was no water dripping through when i arrived. Went up stairs where there is a...
  19. L

    Water leak

    Hi A friend of mine is having problems with a water leak . He lives in a 2nd floor flat, the man right under him has water dripping not flowing through his bathroom ceiling ,my friends bathroom is in the same location , the colour of the water is very slightly brownish , would the colour...
  20. H

    New Water meter fitted

    We had a new water meter fitted, within 12 hours the condensing combination boiler stopped with an error code of E9 and then we had a water leak due to a joint blown open on a pipe leading to the shower. CH system and boiler now working fine and mains cold water inlet is fine. The question is...
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