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As Madrab, plus: 1. If your downstairs shower WC are tank fed rather than mains fed, you may be disappointed with the outside tap's flow rate. 2. An outside tap requires the following to be fitted within the thermal envelope of the property: 2.1 An isolation valve. 2.2 A double check valve. 2.3...

1. The Feed and Expansion (F&E) tank should have a float valve to turn the water off once the correct level has been reached. 2. In addition, the F&E should have an overflow running to outside to run any excess water off in the event of float valve failure. Wouldn't hurt to test the overflow...

Please, only attempt it if you are absolutely sure of your ability to work safely with electrics. Mains voltage can kill you.

1. I believe resetting a tripped overheat thermostat does not require G3 registration. 2. However, the OP should note that an annual service should be carried out on any unvented hot water cylinder. This service must be done by a G3 registered person.

Firstly, some afterthoughts which I should have put first! A. Make sure there is power going to the heating element(s). I.e. the switches are on and the circuit breakers / fuses in the consumer unit are passing current. B. If you have cheap rate electricity, make sure it is still connected...

There are two types of Schrader inserts, long and short. Perhaps he didn't have the right ones with him.

1. The ferrule that has come off is crimped onto the flexible hose. This is not a DIY repair. 2. You should replace the flexible hose between the wall connector and the handset. It will unscrew from the handset and the wall connector. Replace with a HansGrohe one, or at least with a big bore...

I suspect the issue is no such much the hole as sealing the plywood top with its polythene covering.

you're quite right, above, not below.

1. Looks OK to me except that: 1.1 The vent inlet would need to be an appropriate distance below the overflow level. 1.2 You would need some way to let air into / out of the tank to cope with changing air pressure as the tank empties / fills.

1. Agree with Madrab. 450 mm from top of curve to water level. This height will absorb the expansion of water for average sized systems (4% of system water volume) without disturbing the contents of the F&E tank. 2. If it goes in horizontally: 2.1 Water will expand into the tank, the water in...

1. Presumably your picture of the taps is not of your own taps as they already have a shower diverter valve fitted. However, assuming your's are similar check to make sure the rubber O rings that between the chrome cup washer at the base of the taps and the upper surface of the bath are in good...

1. Might work if you are in a hard water area and also de-scale, but probably not. Best to replace the cartridges. 2. Cartridges are often specific to make and model of tap.

1. Its a phosphate "water softener" / scale inhibitor. 2. Have a look at Screwfix item 68371

1. Needs a flexible hose connector between the two "chrome" caps with black plastic ties. 2. May be lying about close to boiler, if not you'll have to get a new one. 3. Close the valves with black plastic handles just behind the chrome caps. Remove the chrome caps, connect the hose. 4...

1. Provided the heating is adequate in each room, then replace Btu for Btu. 2. Otherwise do a heat loss calculation and install correct size. 3. If you go single to double or vice versa the new radiator: 3.1 Will have its pipe centres at different distances from the wall. Pipework changes...

If you do decide to swage, anneal the pipe before swaging. Heat to red hot and allow to cool or dunk in water. Then clean inside and swage.

1. Yes it can be used and saves wrapping the pipe. 2. However: 2.1 It can't be bent with a normal pipe bender as it is more like 16mm outside diameter with the plastic coating. 2.2 If you have to put any fittings into it, the plastic coating has to be stripped back, and then the fitting needs...

1. I assume you mean "will it harm or help the hot water if we had a larger one fitted". You are not allowed fit an unvented hot water cylinder yourself, they may only be fitted by someone with a current "G3" registration. To answer your question, it will do no harm to fit a larger expansion...

Have a look at ShowerSeal web site and see if you can find the model you have.