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    Damp patches concrete floor

    Thanks for your response to my thoughts. Certainly some food for thought there. I'll think on what you have said - I'm beginning to wonder if I am looking at the same thing on Google that you are. Do I have the right property? The hanging basket still looks the same. From what I have...
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    Damp patches concrete floor

    Thanks for the update. I know nothing about the test method you mention - perhaps JohnD can help. I still use a hazel stick and eye. Anyway, if nothing is showing on your water meter spinner with all outlets turned off over say over 5 mins it is very very unlikely that your water system...
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    Damp patches concrete floor

    Based on the premise that my water meter is similar, the slightest dribble/drip will register on the spinner. I suspect that the glass test may be more sensitive oner a period of time though the pressure in the system will only be the house head of water as opposed to mains pressure. Given the...
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    Damp Proof Membrane - Standards & Repair

    Hi Warren Useful response - thanks The ground floor throughout the house is concrete with thermoplastic tiles laid on what appears to be a bitumen based adhesive - so far there have been no other damp problems. I understand that some properties built in the 70s with concrete floors only...
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    Damp patches concrete floor

    Hi Thanks for trusting me with your Post Code. I believe I've found your house - it is part of an 'L' shaped block with a green area enclosed to the rear on 2 sides - yes? I have checked the lay of the land around your house as best I can see on Google and there are some possibilities...
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    Damp Proof Membrane - Standards & Repair

    Update: 1. Overnight test of water supply pipe from road showed absolutely no movement of 'spinner' or smallest digit - phew! This comes up in the cloakroom. 2. Mains S/C in cloakroom opened and 30 min test showed zero movement. Now plan to do an overnighter. 3. 2 x soil pipes from...
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    Damp patches concrete floor

    At last, I have just overcome the curse of the Newbie - I've found your pics. I agree, the most likely cause will be the pipes on the wall and/or possibly the boiler, which I'm guessing is on the same wall. It is difficult to see but unless stand offs have been used to keep the pipes away...
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    Damp patches concrete floor

    Hi From the information you have supplied I am guessing that there is another garage the other side of your wall near where you have the damp patches. Correct? Plastic sheet is a good idea, however unless you put some talcum on it you may not see any evidence of drips from the overhead...
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    Damp patches concrete floor

    I agree with JohnD and let us know what you have on the other side of the wall and double check exactly where your water service pipe is and also where your drain runs are and do not forget that drains from your neighbours can sometimes run under your property or join up with yours. Also...
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    Damp patches concrete floor

    Hi If the patch is spreading from a point away from the walls, then there are 2 options as I see it. A drain is running under the floor and has a problem or, particularly if you are built on clay then it could have dried out, cracked and allowed ground water access to the under side of the...
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    Damp Proof Membrane - Standards & Repair

    Hi Everyone I am in the process of re-doing our cloakroom which apart from a splash of paint is as built in 1978. Because the soil pipe is virtually in the middle of the room I have planned to move the pan back to the wall. So far I have excavated the 4" concrete floor to 6" in depth to...
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