Madrab's latest activity
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1. Both threads (1/2" BSP and 1/2" NPT) are 14 threads per inch (TPI) 2. NPT threads are 60 degree included angle, whereas BSP are 55... -
Madrab replied to the thread Basin Waste to P Trap.Does the spigot part of the flange actually fitting inside the throat of the waste? I have seen this with some 'universal' waste's...
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Madrab replied to the thread Lagging for an external condensate pipe.Ok - strictly speaking during a runaway fault condition where the other safety devices failed then yes that could happen. Not sure I've...
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Madrab replied to the thread Lagging for an external condensate pipe.The only reason the Pressure Relief Valve (PRV) should lift, if working properly, is when the boiler pressure rises to >2.5bar, at that...
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Madrab replied to the thread Lagging for an external condensate pipe.Watch the system pressure when the boiler is running, does it climb up over 2.5bar?
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Madrab replied to the thread Hep20 or something else?.Yup, that's exactly why and even then that may not have been enough if it was an ascending type spray bidet. Cat5 backflow protection...
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Madrab replied to the thread Soldering copper next to a fitting.If it's only 120mm away then it's touch and go. The rag would need to be soaking wet and that may protect the plastic but in turn it may...
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Madrab replied to the thread Minium room temperature, is there a limit?.With regards to what? Temps are usually taken at height so any temp measured below 5degC can start to drop into the frost zone @...
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Most of those cleaners are not to UK standards and to comply it involves separate supplies. Check out different categories of water supplies
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Not allowed, it needs it's own supply from it's own storage cistern.
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Madrab replied to the thread Hep20 or something else?.As suggested, it is against UK regulations to supply an ablution device (bum gun) from the cold mains supply in the UK. This is due to...
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Madrab replied to the thread Shower trap strange goings-on.Is the shower on the same waste run as another fixture that is used regularly? if so, there could be back pressure that is blowing the...
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Madrab replied to the thread 110mm stack rubber seal.As suggested, these seals usually change with age and become hard/brittle or shrink and once undone, experience has shown that they...
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Usually a bit more to it than that, if the seal is coming in and out easily I'd wager it has shrunk with age, and is unlikely to reseal...
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Madrab replied to the thread Radiator Sludge.Bit surprised though, given the fact that sorting out and system sludge/restrictions would have nothing to do with Gas Safe or anyone...
