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Hello, I need to fit a strap on boss onto an internal 108mm copper (yes, really) soil stack. What is the best tool/technique for cutting out a 57mm hole? I wouldn't be asking if it were made of plastic.. Many thanks,

Hello all, I had to turn off the incoming cold main the other day and drain down the cold/hot pipes to and from the loft installed combi boiler to replace a leaking gate valve. Slightly puzzled that the boiler seemed to be dumping its stored hot water into the cold supply that feeds the...

Hello, I've just had a 39kW Vaillant combi installed and a very good job it does too. I want to install a range cooker in my kitchen, but am not sure if I will have enough gas pressure when the boiler is doing its thing. The boiler supply is run in 28mm copper direct from the meter. The...

Hello, is there any way that I can wire in a dual fuel cooker requiring a 15amp supply to an existing kitchen ring circuit, or do I need to run a dedicated supply back to the CU? The existing ring supplies a dishwasher, fridge freezer, toaster and kettle. I am aware of Part P. Many thanks,

Hello, Just had a Vaillant 937 storage combi and rads installed, all done very nicely. However, when I turn off a mains fed cold tap, the boiler starts up, at least I can hear the fan coming on. I thought this might be related to a dead leg with air in it somewhere in the cold water...

Sorry to bring this one up again, but can anyone clarify whether it is still the case that in respect of non-notifiable minor works, a Minor Electrical Works Certificate can be made out by "a competent person who need not necessarily be a person registered with an electrical self-certification...

Hello, I want to take a spur off one leg of a domestic ring circuit where it runs up the wall in a cable tray. Am I right in thinking the best way to do this is to remove the cable sheath lengthwise without cutting the cable and bare the conductors before placing the (unbroken) conductors...

Hello, I've got a PIR controlled wall mounted security light that I can't seem to get onto the security setting after turning the main power off. Got no instruction manual, but seem to remember you activate these by turning them on and off in a sequence at the switch. Any tips? Thanks

Hello, I have an adjacent utility room and bathroom on the basement floor of my house. I am hoping to pump the sink/washing machine waste AND the toilet/shower waste upstairs using one Sanisplit macerator. The unit will handle waste water from both sources. My question is, can I mix...

Hello, I want to install a new Smeg electric cooker in a house in France. The supply is rated at 30A, but the continental spec cookers I am looking at (Smeg) give in their blurb only a nominal power rating of around 10.5kW. That would seem to indicate that a 45A supply is required. I'm a...

Hi, Is there anything I need to know before I remove a fireback from a builder's fireplace opening in a 1960s house? Obviously, it's a messy job.. Thanks.

Hello, I'm plumbing in a downstairs bathroom and need to add an extractor fan as it is windowless. The wiring was professionally done 18 months ago, but no provision was made for a fan. The fan itself will be sited remotely in the ceiling void of another room. All I have to do is run 3...

Hello, I want to install a Profisplit macerator in a downstairs bathroom. The unit power rating is 1000W. The dedicated circuit supplying it has a 10A MCB on the RCD protected side of the consumer unit feeding a local fused spur with a 5A fuse. My question is, if the macerator draws 4A, is...

Hello, I had planned on a Sanibest unit to sort the drainage on a basement I'm converting: WC, shower, sink and washing machine. Saniflo no longer recommend the Sanibest unit for the removal of washing machine waste even though they have not (they say) altered the spec. Before I go to the...

Hi, would you use a grommet in a plastic dry lining box mounted in a stud wall? The cables are not plastered in so in theory are free to move, though I doubt if they will. Thanks for any help.