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  1. C

    Incompatible Pipe Adapters

    I'm looking to understand mains water pipe adapter sizes. Maybe I'm missing something, but here goes: I have 32mm plastic water pipe feeding the property. I need to step this down to 28mm plastic pipe to feed each floor and then 22mm round each floor. Looking round the internet, every...
  2. C

    Several questions about JG Speedfit & Superseal

    I am a DIY person but from a technical background. Some basic questions about JG Speedfit I see reference in other threads to JG to 'push fit'. Looking at a JG video on youtube they show a speedfit fitting where the outer ring is locked after pipe is installed. Q1 Is there only 1 type...
  3. C

    Will 10mm tube be okay?

    I have a small two bedroom semi bungalow with a two year old Heatmax 28HE combi feeding 5 rads and a towel rail. I recently converted a garage (which is linked to the house via a conservatory ) into a bedroom and now want to add a radiator to the bedroom instead of using an oil-filled radiator...
  4. P

    Speedfit Pipe Bending

    Hey, has anyone used the black cold forming bends that John Guest Speedfit supply? Running a bathroom refurb in Speedfit. Only used it a handful of times with a previous 'builder' who believed you could twist speedfit all over the place, not pipe clip it for support and use connections like...
  5. J

    jg speedfit underfloor heating pipe

    Hi all, just completed an under floor heating job and am left with 2 x 40m length of pipe 1 x 20m pipe approx., just wondering what people do with this pipe, can it be used for hot and cold? or do you sell it? it is speed fit so looks very similar but is it different?
    • jase158
    • Thread
    • heating pipe speedfit ufh under floor heating underfloor underfloor heating
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  6. S

    plastic pipe

    Hello guys, We are currently renovating a property. The first fix plumbing has been done in plastic (speedfit). Today I have been trying to fit the pipes in for a new kitchen in plastic pipe (plumbsure). My connections and inserts are also plumbsure. Everything works well on the first fix, and...
  7. S

    Speedfit or flo fast

    Hello all, I will be altering some pipework in my kitchen and was going to use the plastic flo fast fittings (offer on at screwfix) However, I have never used these before and always used speedfit. Any thoughts on flofast? Am I better paying the extra and keeping with speedfit. Any...
  8. G

    JG Speedfit NEW Lay flat pipe test results

    Speedfits new lay flat barrier pipe which is as flexible as a rubber hose put to the test. By the way the testers at JG have had too many joints (and I don't mean push fit ones) and well just watch the vid........ LAYFLAT PIPE PUT TO TEST - YouTube
  9. R

    JG Speedfit

    Hi Friends I posted about hard to remove speedfit connections last week. I thought about it for a while ;) an dthen email the company. A nice chap called me about a removal tool, he said places dont really stock them. Anyway, he is sending me 15 & 22mm removal tools. I'll let you know when...
  10. P

    speedfit insert types question

    I've been using the superseal types on 10mm pipe recently (belt and braces), however I have just got back from the merchants to discover they have given me the standard ones without the O ring, I'm considering whether to use them or not worrying whether the joints might fail in the future if I...
  11. P

    22mm speedfit compression connection

    Is it acceptable to use 22mm speedfit pipe (using an insert) with any conventional copper pipe compression fitting to mate 22mm copper pipe to PB speedfit pipe? The guide mentions hard olives must not be used and recommends copper and not brass olives. Are fittings normally supplied with copper...
  12. T

    Repairing Speedfit pipe behind dot and dab plasterboard

    Hi all A lot of new build houses now seem to be done in Speedfit with the plastic pipes running down the walls to a wall plate behind the radiator, then out into the rad valves. I went to a job a couple of weeks ago where the guy had gone to hang his clock in the dining room and put a screw...
  13. F

    Has anyone had any experience utilising Speedfit guarantee?

    I have been using jg speedfit for a number years now and until recently have had no major problems. However, i have just been called to a job i completed a couple of months ago because the boiler had lost pressure. I attempted to top the pressure back up only to find it wont pressurise. I...
  14. A

    Speedfit Energy Saver Plus Manifold Rad System

    I've been hunting around for a solution where I can individually control heating around the house. I've looked at the Honeywell Evohome solution, danfoss system etc. but I just found this system by speedfit John Guest Speedfit - The World Leader in Push-fit Fittings, Pipe and Plastic Plumbing...
  15. P

    JG collet covers

    JG Speedfit Collet Covers White 15mm Pack of 100 | NoLinkingToThis Anyone used these, just received a packet and it seems strange they don't snap to the fitting but instead just slide down the pipe?
  16. B

    can you get polyplumb fittings and pipe in white??

    hi guys, doing an install next week want to use polyplumb but i dont like the idea of grey pipe and fittings comming out walls under rads. i dont mind using grey under floors but would like to use 10mm white pipe and fittings as feeds to rads
  17. A

    Help! Speedfit Pipe and compression fittings, loft tank

    Hi all, im wanting to no weather i have done the correct thing, i have just installed a pumped electric shower and 25 gallon cold water tank to solve the problems i have with low water pressure and not being allways able to run a standard electric shower. To allow my tank to fill as quick as...
  18. B

    how do you work out how much pipe is needed??

    im doing a job for a mate. Need to rip out all the non barrier pipe in his house and replace with barrier pipe and new boiler. This is the biggest job ive had since I started up on my own and its going to be the hardest as all the pipes have got to go back in his walls say this, its also going...
  19. R

    Speedfit Tank Connectors need a 36mm Holesaw - where from?

    Hi, lots of great advice ref additional CW tank installation, thanks. But, the 22mm tank connectors say they require a 36mm hole in the wall of the tank for the fitting. I can find plenty of 35mm or 38mm but no 36mm. Is it crucial, or is it a case of using a 35mm & 'helping' it in...
  20. D

    3/4" olives in 22mm compression fittings.

    Hi, I have to tee into an old 3/4" pipe for a new shower. I read somwhere you can get 3/4" olives to go into standard 22mm compression fittings. Is this the done thing? If so are they readily available? cheers!
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