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  1. Elkato531

    Replacing a ceramic cartridge.

    The shroud unscrews. You can try by hand using rubber gloves to give extra friction. It can help sometimes to pour boiling water over the shroud first to expand the metal. If all else fails, I wrap a good few turns of insulating tape around it to protect the chrome then use pump pliers.
  2. Elkato531

    How to replace this kitchen sink tap?

    If access to above the isolators is a problem, cut pipes below isolators (having turned off H&C elsewhere). Undo nut and remove horseshoe clamp. This will allow tap to be lifted enough so that you can hacksaw through the copper tails.
  3. Elkato531

    Tank connector how to fit

    I've always just used the supplied rubber washer on the inside. I have seen leaks where a nylon washer on the outside has split.
  4. Elkato531

    How to get rusted-up bolts/screws free with restricted access - help!

    You need to cut through the bolts. Dremel with a small cutting disc can do it from above or multitool from below. Sometimes though, its worth paying someone who has the right tools and has learned from experience how to tackle these jobs.
  5. Elkato531

    Push button flush not working

    That would be a good replacement. Easy and cheap to replace if it goes wrong in the future (as they all do eventually). In order to fit it, however, you will need to separate the cistern from the pan as the basket/overflow part screws up from below. Don't forget to use a new donut washer when...
  6. Elkato531

    Two similar setups but which is more efficient

    Unless you live in identical houses next door to each other with the same levels of insulation, solar gain etc etc and you use your houses in the same way, there are too many variables to consider. It sounds like you both have the boiler temp set so that the boilers will be condensing some/most...
  7. Elkato531

    Whats going on here behind my shower please?

    The one closest should be the hot. A thermostatic bar would usually need the hot on the left as you look at it. The further connection looks like a flexi with a 22mm speedfit connection and fittings to get from a 15mm feed. If the flexis are in good condition then you can re-use. If they look at...
  8. Elkato531

    Changing stopcock internals.

    I would try to avoid attempting to replace the workings of the stoptap. Too much to go wrong with the chance of the new bits not fitting and no plan B. Just remember to have someone video the whole thing and then post it on here :ROFLMAO: Seriously though, if you can freeze the pipe upstream...
  9. Elkato531

    Radiator tail to shut off - metric to imperial

    You will also need a radiator allen key in order to fit it. https://www.screwfix.com/p/radiator-spanner/11467
  10. Elkato531

    Do I need a new boiler? (Possible HEX blockage) (Ed.)

    I recently had a job where the system temp never got above 45 degrees. It was a 38KW heat only glow worm which some idiot builder had specced on the assumption that bigger is always better. The system pipework couldn't cope with the boiler output and temp rise was too fast so the burner shut...
  11. Elkato531

    How Much Condensate Should A Combi Produce?

    Not uncommon for logic heat exchangers to leak system water which drains via condensate. Haven't tried it myself but I've heard of people adding a bottle of cheap aftershave to the system water. If the smell transfers to the condense, it can only have passed through the faulty main heat...
  12. Elkato531

    Advice with flushing heating system

    Depends on the price of the whole quote but £400 for a properly done powerflush on a large system sounds like a bargain. You could do it cheaper yourself but if there are problems in the future, the installer could always throw your "amateur" powerflush back at you.
  13. Elkato531

    Towel Rail off DHW

    Common set up to have the bathroom towel rail either as a bypass or on the hot water circuit. Folks seem to like having warm dry towels all year round.
  14. Elkato531

    installing heavy designer rad on celotex insulation board

    I would cut out sections of the existing plasterboard where the brackets are and fix battens to the wall to the depth of the celotex insulation. Plasterboard over so that the brackets fix through the plasterboard directly into battens
  15. Elkato531

    CH advice please

    Unlikely to be a problem.
  16. Elkato531

    Replace rad valves - best method

    My apologies. Turn off with an adjustable spanner. Quarter turn.
  17. Elkato531

    Replace rad valves - best method

    If they are the iso valves as shown in the manual, they should have a hole in the middle for an allen key. Post a pic of your valves.
  18. Elkato531

    Replace rad valves - best method

    Should be ok with those flow and return iso valves. They look like they have a screwdriver slot but use a 4mm allen key. If the rad is already removed... Turn off boiler Bleed all other rads to release trapped air Close flow and return iso valves If there are any other auto air vents on the...
  19. Elkato531

    Replace rad valves - best method

    I wouldn't worry about closing valves on other radiators. Just make sure they are fully vented before you start. The main pressure reservoir on a combi system is the boiler expansion vessel. There is also an auto air vent inside the boiler. Both of these can be taken out of the equation by...
  20. Elkato531

    Shower Bar strange problem.

    It could be that the flow through the boiler is too great to heat the water to the shower adequately. Opening the cold tap will reduce the supply to the boiler allowing it to transfer more heat to the shower. At this time of year, incoming mains water is very cold and the combi can only put a...
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