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damage

Damage is any change in a thing, often a physical object, that degrades it away from its initial state. It can broadly be defined as "changes introduced into a system that adversely affect its current or future performance". Damage "does not necessarily imply total loss of system functionality, but rather that the system is no longer operating in its optimal manner". Damage to physical objects is "the progressive physical process by which they break",: 1.  and includes mechanical stress that weakens a structure, even if this is not visible.: ix. 

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  1. T

    combis/unvented running with no pressure

    been doing a few rad jobs lately and found that the systems were very low or empty of pressure, customers totally unaware and heating seemimgly fine. So what is the issue running like this? will it wear quicker? more stress on the pump? :confused:
  2. M

    leaking mixer tap

    The single lever mixer tap in the WHB of my campervan is leaking following exposure to frost - no other damage It is a Paini ,? Magnum or probably older version, at least 5 years old. There is no apparent way to access the innards of the tap. How do I take it apart? is it likely to have a...
  3. A

    acs pass

    passed acs today thanks to everyone who gave me advice on this website;););):):):):o
  4. M

    Potterton suprima 40 blowing 3 amp fuse & rcd.

    My Potterton Suprima 40 is blowing the switch 3amp fuse and tripping the rcd ,it is doing so although the programmer HW & CH are in the off position.I removed the programmer from the backplate & replaced fuse and the red boiler light came on but when iput the programmer back on it blew the fuses...
  5. A

    Compression joint leak hassle.

    Hi all. I have a leak that I just can't cure. My mains stopcock is in the concrete floor in a 9x9" hole forcing me to use a tap spanner It decided to leak from below the input comp. nut. There is hardly any clearance to drop the nut down to get behind what may be an olive or a flange. After a...
  6. P

    Plastic pipe

    I Always use polypipe fittings when not using copper. i prefer it because it has 16 teeth and can be used with copper as well (if needed). I used to use equator but never like demounting the fittings. I'm just really asking what other fittings are as good as or better than polypipe fittings...
  7. Z

    immersion heater

    Hi there i am looking to add a timer to my immersion heater (hot water) as i had an old tick tock one before and this brokedown and have not replaced it for some time. i have a 2.3-3kw element and was wondering which is the best one to get in regards to power amps etc many thanks P.s i hope...
  8. 1

    Broken soil stack

    Posted: Tue Mar 09, 2010 12:11 pm Post subject: Broken soil stack [/URL] Hello this is my 1st post so please be nice. At the weekend i went to repaint my soil stack outside. All was going ok till i got to the branch part where the pipe from the wc comes out of the house into the branch on...
  9. B

    fault guides

    what are the thoughts on starting a fault guide only acsessable by the trade?common makes and how to resolve problems?if you have fixed a fault sharing experience on breakdowns:confused:
  10. S

    replacement for neta heat

    need to replace a neta heat 10/16 whats everyone else using ? i dont get to do many open vent boilers most people want combis i fitted a vaillant last time i did one but it was very tempremental took ages to get running right wondered if theres some thing more forgiving regarding system layout...
  11. D

    alpha 240X no hot water

    Hi Guys Alpha 240X customer complaining about lack of hot water and will only stay hot on low flow i opened up the Divertor v/v and changed out the DHW flow and primary flow diaphrams but this has only made a slight difference when the hot tap is opened you can get plenty floy (but cold)...
  12. S

    telford temp[est unvented cylinder

    Hi all, Recently came across one of the above fitted. System had been up and running for 3 weeks no leaks, all heat tested ran off a vaillant ecotec 624, all relevant safety controls in place. Called to a flooded house!! Turned off water searched for problem in airing cupboard where cylinder...
  13. P

    cracked cistern

    i have a cistern that has developed a hairline crack right down the back. the water is seeping out, at the rate of about 10 drips a day!! i want to have a go at sealing the crack before doing the obvious and replacing it. any suggestions as to what i could use? my first thoughts were silicone...
  14. F

    outside garden tap not working??

    Help needed..getting peed off with garden tap. Water will only dribble out of the outside tap, tried a new tap still the same. Its a new house all pipes etc should be fine. Checked isolation valve that works, there is water getting to the double check valve thats okay, it seem to be between...
  15. D

    Central Heating Pressure Problem

    I am having a slightly weird problem! I had a Vaillliant boiler fitted October of last year and the central heating and hot water has been working fine. I came home yesterday to find an BMT error on my wireless Thermostat so went up to the loft to check the boiler. The pressure guage was...
  16. F

    No Pump Over Run

    I have got a new Worcester 24Ri fitted and the pump over run is not working on hot water or central heating. Is this likely to cause any damage to the boiler. The installers know this and can't come and fix it for over a week. Should I turn the boiler off and not use it till its been fixed...
  17. I

    vokera 24 not firing

    Hi There, First visit to this forum. I have a 2 year old Vokera 24 (running on propane), which will not fire up. I ger a green flashing light for about a minute, then solid red. I have tried a few things and have discovered that the fan in not turning, there is no power going to it, and after...
  18. P

    Questions for my first job

    Hi I am on my first job working for a friend and I have two questions 1. Copper Pipe joining, is it personal preference to use Yorkshire fittings as apposed to an end fed capillary fitting? A plumber was telling me that yorkshire fittings are for diyers? 2. Waht is the best way to cap off...
  19. S

    Small brown marks, like dots on the toilets and basins

    Hello I’ve just purchased new toilets and basins manufactured by Roca. There are a few small brown marks, like dots on the toilets and basins. Can anything be done to remove them? Thanks for your time and advice!
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