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A joint or articulation (or articular surface) is the connection made between bones in the body which link the skeletal system into a functional whole. They are constructed to allow for different degrees and types of movement. Some joints, such as the knee, elbow, and shoulder, are self-lubricating, almost frictionless, and are able to withstand compression and maintain heavy loads while still executing smooth and precise movements. Other joints such as sutures between the bones of the skull permit very little movement (only during birth) in order to protect the brain and the sense organs. The connection between a tooth and the jawbone is also called a joint, and is described as a fibrous joint known as a gomphosis. Joints are classified both structurally and functionally.

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  1. gassafe

    Unsweating a soldered joint tight to ceiling!

    I often find on replacing a boiler I have to unsolder a joint far too close to the ceiling than makes me comfortable!! How do you guy say do it without setting fire to the house, I'm always worried the flame will catch something in the ceiling... this is is an example, the 22mm flow pipe...
  2. S

    how to seal a very slow dripping joint. Can't be tightened further or opened

    There is drop of water dripping every 10 minutes from a joint between socket and valve. (as shown in the picture). This was put in place using ptfe tape and tightened to the end. It cannot be tightened any further or remove and refitted with more tape etc. I believe the leak is so small that it...
  3. F

    Leaking solvent weld joint

    I installed an external soil pipe, however the 4" solvent weld connected is leaking, tried to wipe more glue on but still weeping. I'll be taking out and renewing but there's a lot to take out then replace, do any of you have any sensible suggestions or know any product that will fix?? Cheers
  4. T

    Quick fix for a leaky toilet waste?

    Hi all, I've got a customer who wants me to fix a leak where the toilet pan meets the pan connector. Of course I'd usually take out the pan and replace the connector but for a variety of reasons (rusted screws etc...) it's difficult to move so I was wondering if there was a quick fix that would...
  5. N

    Joint compound

    Hi. Probably a silly question to most on here, but is boss white ok to use on compression joints that carry drinking water. I thought it was but my mate thinks its non drinking water only. If this is the case what should i use on the joints for our new taps. Thanks in advance Nigel
  6. A

    Gunk escaping from cyclinder expansion vessel joint

    I have just moved into a new flat which has an unvented hot water cylinder. There is some very disgusting gunky looking stuff around what appears to be a leaking joint/valve going into the expansion vessel. At first I thought it was from a botched repair attempt using some kind of foam sealant...
    • asdf0987
    • Thread
    • attach expansion expansion vessel joint plumber though vessel water
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  7. C

    Weeping 10mm compression joint on radiator TRV

    After four years of not leaking, the 10mm compression joint on one of my son's TRVs has decided to weep -resulting in combi pressure loss within a few days. I have slackened it off a tad and retightened and will keep an eye on it. It was already very tight, so I am expecting it to still weep and...
  8. W

    Do you test EVERY rad joint hot?

    Even putting a rad back on after decorating? May have just got bitten by a leak occurring once hot in that situation. Would mean charging more than min labour in some situations/losing job.
  9. W

    If I cannot tighten a compression joint quite enough..

    On 3/4 pipe, with a new 3/4 olive (brass, not copper alas) under a bath, on the further away of the two feeds, with bugger all space between wall, pipes and bath, using grips, tap spanner, adjustables, jaw dropper, no matter how many blood vessels I burst, are you guys all going to hand on heart...
  10. M

    Electric Shower - connecting a brass compression joint to plastic spigot

    I'm about to connect a replacement electric shower. The shower has a 15mm plastic spigot and the cold feed has a 15mm brass compression joint. I've read I should use a new copper olive, but should I also use a jointing compound or ptfe on the olive to ensure a good leak free connection. Any...
    • Maxrob
    • Thread
    • brass compression compression joint connecting electric electric shower joint plastic shower spigot
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  11. M

    flux brush after soldering

    Do many people use a flux brush to wipe fittings just after.soldering to help the solder run around the fitting?
  12. E

    draining system question/ leaky joint

    Hi there I wondered if anyone could help. We have recently connected central heating system (combi) and all the runs are in copper with cast iron radiators. We thought we were leak free but have since discovered a drip on an elbow that was on a concealed run. Its dropping the pressure in the...
  13. C

    soder bar

    what solder bar does everybody use? does anybody make their own? or do you use leadlock?
  14. J

    Taking apart Lead joint on 4" Cast Iron pipe.

    Vertical soil pipe in 4" CI. Connections below collar I would prefer not to disturb. Any advice on dismantling lead joint at collar.
  15. jaydebruyne

    Concreted Waste Pipe

    So the elbow pan connector has been cemented into this 6 or 7 inch pipe and not set straight so pan is emptying slowly and I have to fix it. So after taking the toilet out, how is best to get the pan connector and concrete out? SDS chisel? Also, a lot of concrete will end up going down the...
  16. K

    Leaking 6" waste joint

    Hello there I am a new member and really need a bit of expert advice, the waste pipes from the bathroom sink and bath joint up into 1 outflow pipe which is in a reducer/insert going into a 6" cast iron pipe which protrudes from the masonry wall by about 2 inches. There is a seepage/leak around...
  17. B

    Compression Joint Query

    Trying to add a bidet shower hose to my toilet. Am stuck at the joint as to what I would require to join the tee compression with the toilet tank. I have seen in you tube videos that the copper pipe slides in the tee compression hole but I got a piece of copper pipe and it just doesn't go in the...
  18. B

    phoenix TRV 15 mm rubber olive compression joint

    Hey guys, has anyone ever come across a rubber olive before? Every valve I've ever fitted up until now has a copper/brass olive compression joint onto 15mm pipe but this new radiator valve that I need to use for the type of radiator I have uses rubber olives to compress onto the 15mm pipe...
  19. M

    Re positioning 15mm solderd joint

    I need to swing out a 90 15mm copper fitting to fit a new radiator valve (marked 1 in photo). Can I apply heat to the 90 degree joint to loosen the solder and pull the 15mm pipe to the correct position so the valve fits the rad?
  20. S

    40mm to 42mm chrome plated brass compression joint?

    Does such a thing exist (40mm to 42mm chrome plated brass compression joint)? I'm have a nightmare trying to marry my shallow seal bath waste with existing 42mm pipe-work. Thanks in advance for any help.
    • SimonSmith
    • Thread
    • 40mm brass chrome compression compression joint fittings joint mcalpine straight
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
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