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    Gas pipe under screed

    I was running gas from meter to hob today in preparation for screed, which is going down next week. I've clipped my pipe and tested it etc. this pipe is going to be beneath celotex insulation a damp proof membrane and then my ufh pipes and a liquid screed. My question is: Do I need to denso tape...
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    Underfloor heating manifolod position

    A builder has asked me to put the ufh manifold in the basement which will then feed the ground floor (the pipes will all be above the manifold) I think that any manifold MUST go above pipe loops for air bubble/airlock prevention what say you guys????
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    power flush price(loyal wealthy customer)

    3 floors 20 rads big house how much(ish)
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    commercial plumbing regs

    are there any specific regulations regarding tmv installations on shower installs that i should be aware of, by my reckoning i could just put one tmv on hot outlet therefore controlling the temps on all showers. my questionis does every outlet need its own individual tmv?
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    vertcal flue termination

    i have to fit a vertical flue which i know must be 600mm from side of the velux my question is how far must it be from the property boundary mi's dont say i dont have access to view the standards and thought one of you may know off the top of your head
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    any one fitted a pressure accumulator?

    have any of you fitted one of these gizmo's? do you rate them? what sort of size would be required for a combi? any links or advice would be welcomed
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    what do you think of flouridation of water????

    my title says it all i want to find out what plumbers in general feel about having this added to most water supplies. do a little research and get back to me. not so much a question as an opinion poll (of the informed)or not
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    gas meter

    i only qualified last oct, so yesterday i go to do a l/lords cert meter was eventually found in a base unit used to store food awkward to get to. in my training manual it says meter should not be where food is kept and should be accessable. i phoned gas safe for guidance the rather snotty person...
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    vaillant 831 combi

    have instlled above boiler, has been working fine now there is an intermittent tick which seems to be coming from the heat exchanger when heating starts to warm up and then once its cooling down surely if this is due to expansion/contraction it would have started from day 1 any input would be...
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    ticking noise

    debating with architect today about the source of the dreaded ticking noise we can experience on ch installs. is it A) unclipped pipes B) pipes too tight in notched joist/ too close to underside of flooring
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    unvented discharge from basement

    i've seen that there have been posts of this nature but no verified solution. the only way i can see around this is (a) discharge into break tank with sump pump which would also take a washing machine and sink therefore solve the problem of hot water in tank (b) dicharge into sanivite macerator...
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    gas safe inspection this friday

    i am a newly qualified engineer and have an inspection this fri the insp has called me and because i have no work to show him he wants me to do a mock l/lord cert. the boiler i will use is a potterton prima 50f 20 yrs oldish good nick if i do the visual inspection, gas rates burner pressure, is...
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