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Before Present (BP) years is a time scale used mainly in geology and other scientific disciplines to specify when events in the past occurred. Because the "present" time changes, standard practice is to use 1 January 1950 as commencement date of the age scale, reflecting the fact that radiocarbon dating became practical in the 1950s. The abbreviation "BP", with the same meaning, has also been interpreted as "Before Physics"; that is, before nuclear weapons testing artificially altered the proportion of the carbon isotopes in the atmosphere, making dating after that time likely to be unreliable.

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  1. Lou

    Welcome New Members, Please Read This Before You Post..

    Welcome new members to We are glad that you have found us and joined our friendly and knowledgeable community here. This forum is just to introduce yourself, a quick hello and break the ice. You will be welcomed with open arms :) If you would like to post about a...
  2. R

    Anyone done this before?

    Would like to replace this old Bristan 1850 with a modern mixer bar. Has anyone had experience of doing this? Pipes seem to be on 140mm centres which could be a problem? Don't want to have to start dismantling tiles or walls if at all possible. Thanks in advance for any help.
  3. J

    Anybody seen or done this before, coz I ain't..

    Hello all, Today I was replacing a CC WC with a concealed cistern and BTW pan (in a cabinet). The CC pan was bedded on mortar, I couldn't understand why as the connector was going into the floor, then low and behold when I chipped the mortar away I came across this... 2 x 90 deg pan conn's...
  4. R

    Are any fittings allowed on mains in before the stopcock?

    My stopcock is in a difficult to access location behind kickboards, can I put a coupling on the mdpe pipe coming up and into the house and move the stopcock up into the cupboard under the sink? Just wondering if any fittings are even allowed between the mains shutoff in the street and the...
  5. J

    Anyone seen one of these plastic couplers on WC before?

    Hi everyone, I'm in the process of fixing an old Twyfords WC. It is a close-coupled model, though with an unusual plastic elbow between the cistern and pan. See pics. Anyone know if/where I can get a new elbow? Thanks for your advice, Jennie
  6. J

    Have you seen one of these before, coz I ain't...

    Ok folks, standard WC pans are approx 400mm to the rim right? Those for elderly or less able 430mm i.e. DOC M etc. Well in the bathroom I've been working on this week the pan rim height was 490mm!! Pic FYI How terrible is that, doesn't even fit the profile of the pan... at first I thought...
  7. M

    Microbore advice - please! - New run pipe size before reducing to microbore

    Hi All I want to add a radiator to a microbore system; the supply and return pipes are all 22 mm feeding a mixture of 10 mm or 8 mm microbore which are taken directly from the ends of the 22 mm pipes. I plan to "T" into the 22 mm supply and return pipes with a run of "large bore" pipe before...
  8. J

    Vaillant plume kit, not seen one like this before.

    very strange looking plume kit on a Vaillant, not seen one like this before.
  9. U

    Half turn on tap before water comes out

    Hi all, On one of our cold taps i have to turn the handle about a half turn before the water starts to come out. I have taken the handle off to reveal the valve assembly and notice that on the top section where the head with splines is, this can be turned some way in either direction when the...
  10. M

    Isolation valves before the radiator

    Hello. Can anyone tell me what kind of isolation valves to put before the radiator pipes (about 2 meters away) inlet & outlet . The reason for this is I want later on to put another small radiator on the hall way and don't want to take all water out. Thanks
  11. Dan


    If you're looking for a professional heating engineer then please feel free to post your job details in this forum category. Please make sure you include the location of the job, what the job entails, information about the contract and who will be paying and what the time frames are, and include...
  12. Dan

    READ ME BEFORE POSTING IN THIS CATEGORY! - Important Info About This Forum

    If you're looking for a professional plumber then please feel free to post your job details in this forum category. Please make sure you include the location of the job, what the job entails, information about the contract and who will be paying and what the time frames are, and include as much...
  13. Dan

    READ ME BEFORE POSTING HERE - Important info about this forum

    If you're looking for plumbing work in the UK then please feel free to post details about your qualifications and experience in this forum category. Make sure you include information about the area's you're willing to work in, and the type of work you are looking for. DO NOT INCLUDE CONTACT...
  14. Dan

    This is why the forum was quiet before...

    Just watching the stats of users online right now. Seeing what the percentage of devices being used is. And it's nearly all mobile and tablet. So the old style just wasn't working for those guys. Now all of those (and half are mobile!) can browse the forum using a really neat design that...
  15. A

    Alpha CB50 only coming on for few seconds for both DHW and CH

    Got an alpha CB50 which has suddenly stopped working. Both hot water and central heating only come on for a few seconds before cutting out only to restart trying again a minute later for the same result. Did have issue that builders removed flue but that is back in place so shouldn't be an...
  16. E

    Alpha FlowSmart - Thermal Store Leaking and Boiler Whining

    My first post: Two unrelated problems. I have a 7 year old Alpha 35C boiler as part of a Flow Smart installation with a 50 litre Thermal Store on the primary circuit thats heats up the inflowing cold main before it entering the boiler via a mixer valve. The Thermal Store tank is sited in the...
  17. A

    T connection on return flow of central heating

    Hi all. I'm after a quick bit of reassurance that the plumbing work I have just had completed is up to scratch. I have an open vented central heating system with hot water cylinder in an S plan plus arrangement - 2 central heat zones (one old, one just added for extension). The second central...
  18. E

    Powermax 1400 boiler - burner not always kicking in

    Apologies for the long post but I'm hoping to get a bit of advice. Last week a plumber came in to replace a bathroom rad with a heated towel rack and remove a rad from downstairs in the hallway. The work seemed fine and our CH and hot water both came on as programmed that night. However the...
  19. R

    Heated Towel Rails

    Good morning and hello. I wonder if anyone can assist. For many years our heated towel rails have been running when either the CH or HW is running, so when the CH is off the towel rail will get warm, and similarly when the HW is off the towel rail still gets warm. Now having had some work done...
  20. V

    glow worm hxi 30 boiler f9 fault code, what it means blown fuse on pcb main board

    glow worm hxi30 boiler f9 fault code. no low water pressure switch on this boiler.and blown fuse second on pcb (does tis mean board gone?) main board pump external to boiler. grundfos 25-80 slight history of job, arrived to fit dual fuel cooker gas hob electric oven. fitted connect l.N.E to...

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