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    Bath taps not covering holes

    The holes in the bath are usually 35 mm in diameter. You may be OK but you won't know until you remove the old. Remove it carefully in case you have to put it back at least temporarily.
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    Thehmostatic radiator valves keep failing

    Most isolation valves are not suitable for the constant high temperatures of a central heating system.
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    Cutting up (and getting rid of) a cold water storage tank in the loft.

    1. You may well find that once it's empty the lid can be removed and the tank folded up enough to go through a loft opening. 2. Otherwise use the jigsaw with a wood blade, or a hard tipped carpenter's saw, or tin snips. 3. Polythene down is likely to be the best you can do re dust collection...
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    Stopcock leaking around spindle, fixable?

    To fix a leaking gland nut on a stop valve. Close the valve completely. Turn clockwise looking down on the handle. Undo the gland nut. This is the small nut, usually hexagonal but occasionally a knurled ring. If the “T” piece for the handle is screwed on in the centre, try and loosen the...
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    Deburr after using a pipe slice?

    1. With mains water, as soon as you turn on the tap, any small swarf will be washed out. 2. If the hot is from a combi or unvented cylinder, same as 1. above. If fed from vented hot water cylinder on 1st floor, ground floor should be washed out as 1.. If on same floor, it will probably just...
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    Deburr after using a pipe slice?

    1. Best practice is to deburr. Something like the Monument Tools MON365F, or if only one or two to do, a half round file if you already own one. 2. Idea is to stop bits of e.g. cloth getting caught on a burr and a bigger obstruction building up. Unlikely to occur in a central heating system...
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    Radiator Valve question

    1. I'm sure Denso is right, because I doubt that valve is unidirectional. If it were, it implies that flow can only go one way, which would mean that it could be on the flow, or on the return, but not on both. 2. Wouldn't be the first time products are mis-labelled / provided with incorrect...
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    Leaky tap

    1. The taps will most probably be fixed from the top. Quite how you should be able to see with the handles removed. 2. With the top fixings removed you may have enough room to withdraw the mechanisms from underneath without undoing the flexi hoses, at least sufficiently to undo and remove the...
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    Leaky tap

    1. At least you have isolation valves fitted which should enable you to turn off the water. The chrome fittings just above the copper pipes. Turn the screwdriver slot in the centre. Slot at right angles across the valve = closed, parallel with the valve = open. 2. Then remove the handles...
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    unvented cylinder installation current combi vs. new system boiler

    1. Combi can be used perfectly well with a hot water cylinder, vented or unvented. It is set up as "another radiator" on a separate zone. 2. However, you need to make sure the incoming main is sufficient to provide at least 20 litres per minute at a dynamic pressure of around 2 bar to make it...
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    How to replace this kitchen sink tap?

    Ordinary tap water is generally a conductor of electricity, but nowhere near as good a conductor as copper.
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    Isolation Valve on Led Pipe

    1. Those threaded adaptors look like 1/2" BSP thread. If the diameter measured (accurately) across the threads is almost 21 mm (20.99) they are almost certainly 1/2" BSP. 2. If they are 1/2" BSP you could use a pair of service valves such as Screwfix item 58008 to go from the 1/2" to a...
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    Hot Water Cylinder Lifespan

    If a decent copper one should be 50+ years.
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    Why would the boiler be turned down to 10kW?

    1. If the boiler is too powerful, it will heat the radiators quickly, then shut off, wait until they cooled a bit and then restart. This is called cycling. 2. Modulating boilers don't use this on, off, on, off approach. As the radiators heat up, the return water temperature reaches towards the...
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    New kitchen tap G3/8 into 15 mm isolator valves

    1. Get a pair of adaptors such as Screwfix Item 6089R. Also get 2 x 15mm compression olives, preferably copper rather than brass. You can get these from Toolstation (code 92817), but its probably cheaper to buy a fitting like a 15 mm compression elbow or coupler and use those olives. 2.The...
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    Leaky tap

    1. Three hole bath taps are, I'm afraid, the work of the devil. 2. You will probably find that the handles have long spindles which go down to cartridges below the level of the bath top. To get the cartridges out you may well have to remove the taps from the bath completely, which will...
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    Leaking Pump

    1. Where is it leaking from, the joints at one or both ends, or from the centre of the pump? 2. If from the joints, then, in order: 2.1 Try tightening the big nuts securing the pump to the pump isolation valves. 2.2 Change the sealing washers e.g. Screwfix item 4252J 2.2a Isolate the water using...
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    Tank connector how to fit

    Assuming (given that it's 22 mm) the connection is for the water coming out of the bottom of the cistern, I'd: 1. Fit the rubber washer between the flange on the tank connector and the inside of the cistern. 2. If supplied, use a nylon washer between the nut and the outside of the cistern. If...
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    Ideal HE 30 Combi - hot water only hot at low flow rate

    1. The design figure for the boiler is 12 lpm at a rise of 35 degrees from cold to hot. 2. If you are only getting 8 lpm I would suspect the secondary heat exchanger is partly blocked on either the DHW or boiler side or both. 3. The exchanger can be cleaned, although most engineers would...
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    Logic Combi ESP1 35 pressure dial

    1. If the "Bronze cap" is actually a right angled (or similar) copper pipe elbow, it is almost certainly the termination of the pressure relief valve. 2. The boiler has a pressure relief valve(PRV) designed to open at 3 bar pressure and let excess pressure go safely outside. 3. If it is is...
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