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Recent content by joni os

  1. J

    Anyone cured themselves of work-related 'tennis elbow?'

    Exercise for tennis elbow. Can be done sitting in chair watching TV:- Support forearm, elbow to wrist, by resting on arm of chair. Hand,palm down, overhanging end of support. Flex wrist in vertical direction, down/up, over full range of movement without moving forearm. Can be done in sets of 25...
  2. J

    What might make combi produce low dhw flow?

    Divide the Kw rating of boiler by 3 to get expected flow in litres/min. 24Kw should give 8 litres/min. If you can confirm cold water flow to boiler exceeds 8 litres/min then problem is most likely scaled up domestic hot water heat X. Could be faulty diverter valve but in hard water area any...
  3. J

    Reduce length of copper pipe

    A hacksaw blade only cuts in one direction. Often, especially with a junior hacksaw, reversing blade so it cuts on the pull stroke will overcome problem.
  4. J

    Please Help! Overflowing Gravity Fed System

    As above. Check by tying up ball valves and wait for water level to be same in each tank. If looking for temporary fix,ie heating from boiler and hot water via immersion heater, it will be necessary to isolate BOTH the primary flow and return to cylinder coil.
  5. J

    Leak from Isolator valve tap connector nut on bottom fill cistern

    A metal nut on plastic thread is a defect waiting to happen. Trying to tighten on a fibre washer makes failure more certain. This is why fill valves with brass shanks have come back in fashion. If you must use a brass nut make sure you're using one with a soft rubber O ring, so seal can be...
  6. J

    hope somebody can help I'm fitting a kitchen turned the hot water off

    In older house very likely feed to HWC will be 3/4" not 22mm. Make sure you have 3/4" compression olives to go with full bore 22mm lever valve. Moving pipe apart to install new fitting could also be problematic as straining pipe against weight of full CWS tank could result in leak at outlet...
  7. J

    Does this look fair

    Very reasonable if VAT included in materials price and zero on labour. Even with VAT added to above, prices not exorbitant, but could warrant a second quote.
  8. J

    Cleaning drain rods

    Therein lies your problem. The ability to test is getting confused with the necessity to test. Everybody with a headache don't need a brain scan, even if they work at a hospital. Spending £20K on special equipment needs justification from actual health incidents, not a theory of contamination...
  9. J

    Cleaning drain rods

    Sack the H&S officer. If the jet wash don't clean them I should have died of a hundred different virus by now,and so would many others. If the worry is contamination of jet wash bay, then a plastic 45 gal. drum with lid cut off and pressure washer/steam cleaner would do the trick. Gently...
  10. J

    Cast iron stack (shared waste system)

    Avoid close coupled WC, this will create problem with standoff at wall, but with the low level WC shown in photo. standard branch will suffice.
  11. J

    Cast iron stack (shared waste system)

    Cutting CI. leaving 90mm of plain pipe for stepped Clay/CI. to plastic connector works, provided CI. is cleaned off externally.Smear plumbers mate external on CI. Sometimes CI. is not truly round especially near junctions but connector can usually accommodate small distortions. A stepped...
  12. J

    The budget

    If mine was the small business with a tax liability of £18.3bn , I'd be happy to pay it. Making 9.5 plus 18.3 add up to 36 must be creative accountancy.
  13. J

    Help! What am I missing Potterton Suprima with a new board

    Disconnect boiler and pump live , at wiring centre. Check your controls function correctly ie. 240 volts at appropriate terminal. Reconnect pump and ensure this runs when calling for heat or hot water. Finally reconnect boiler. The controls do not need the boiler connected to function properly...
  14. J

    Shmooooooowkin

    Oil everywhere, indicates crankcase compression, possible blocked EGR.
  15. J

    Anyone else get customers like this?

    Any suggestion from customer that previous work caused problem indicates reluctance to pay for necessary repair. When, as in this case, certainly not at fault, I turn it round on the customer and suggest they engage someone else for the repair," in order to restore their confidence in my ability".
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