Articles, Blog


August 21, 2019

– [Narrator] Hold tight,
and welcome to this all about
these lovely, little fittings. We’re gonna go to that
video any minute now, but before we do, I’d love it
if you could please subscribe to this video by clicking on
the link that’s appearing now. Those links are available
throughout the video for you to click on any time. And as I’ve said before, they’ll completely enhance your
whole feeling of this video. Anyway, I hope you enjoy it
everyone, and hold tight.,
Honest Reviews and Advice. So then, you’ve obviously found this video ’cause you wanna look and find out about how these fittings work, and how MDPE pipe works. Now, MDPE pipe stands for medium-density polyethylene, which to plumbers and people like you means absolutely nothing. All you need to know is that it’s used by your water supplier to supply water up to your property. They are often found in either 20 millimetres or 25 millimetre sizes. It’s really, really easy to work with. These fittings are absolutely brilliant. They’re bombproof once they’re
in they’re perfectly fine. So what we’re gonna do is show
you exactly how they work. I’m just fitting a small ATPLAS chamber at my property here today. So, I’m gonna show you
exactly how you can use them when you’re actually out
and about on the site. Enjoy this video today guys, and remember to hold tight. Right then, we’ve got
a few different kinds of fittings here. We’ve got a 25-millimeter to three-quarter male thread here. So that can go into any
kind of iron fitting. We’ve also got a standard
20-mil straight coupling. We’ve also got a 20-mill
to half-inch iron as well. So it gives you a good
idea about how they work. Also, you’ve got a little
bit of blue 20 mil here. As you can see, it’s very easy to cut if you’ve got some cutters like that. And you get a really
nice, clean cut on that if you use proper cutters. You can use a hacksaw on
it, that’s totally fine. Now, just looking at the
pipe before we continue. Often you’ll find when you’re on site or you’re working or something like that, the builders have probably
put this in beforehand, and they’ve pushed it round
through a breezeblock wall, or something like that,
and it’s got all scored. So what I’d say it’s a very good idea when you’re actually gonna be
fitting any of these fittings to feel around the pipe itself, and just see if there’s any sort of scratches or scores in it. If there are, grab
yourself a Stanley knife, and drag it.. put your Stanley blade almost at right angles to the pipe itself, and just drag that up there. And what that tends to
do is just clean that off and flatten it out and smooth it out. That always helps. And obviously a great idea as well is to have a rasp for these so you can just rasp out any burrs and flatten off the ends. Before we continue,
with anything like this if you’re doing any of this sort of work, you’re fitting any of these fittings, be sure to buy the corresponding
inserts to go with it. You can pop these on there like that and that lets you protect
the pipe from being crushed, when you tighten up your
fitting later on in the job. Let’s just have a look at a
standard one of these fittings. If we unscrew the compression nut, what you’ll expose is a small clamp. Now, you’ll see… you’ll notice there’s a tape on this clamp here, and there’s a corresponding
tape inside the compression nut. So when this screws down…
when the compression nut screws down around on this thread, that’s gonna force down
a bite on this clamp, and also a bite slightly
on the rubber inside here, and make a watertight seal
and make sure your pipe doesn’t pop out when it’s under pressure. We’ll just pop this bit out here. You’ll see inside there with
that little white dot on it you’ve got your little rubber seal. They’re a strange sort of shape. They’re kind of… they’re
not completely round. They’re kind of flattened
off on each side. But that sits in there like so. Then this sits here like that. And then our nut sits on here. The way to do it is to make sure you can see a couple of threads on here that’re completely undone. Get yourself your pipe like so. Pop your insert in it just like that. And then you’ll be able to push this right in here, and that’ll feel a little bit wibbly-wobbly… a little bit loose. Now what you wanna do
is just tighten this up. You can almost tighten
these fittings up by hand, and they’ll create a
pretty good seal just then. But really what you wanna do is grab yourself a set of grips, nice set of grips. Grab the fitting itself like so, and then get another set
of grips on this nut here. And then tighten that up as you would do a normal
compression fitting. So if you like to recap. You’ve got your insert
pops in here like this. You have your nuts. Your actual clamp. Your rubber seal on there like so. And that all fits together. You can even put them together like this, even though I don’t recommend it. Once you’ve tightened this up, even if you do it by hand, you wouldn’t believe how
much of a clamp that gets. It’s absolutely fantastic fitting. Well done Filmac. Well done. Sometimes you find that
it’s quite difficult for suppliers to find the right
sort of fitting that you want. And we’ve got that
problem on this job here. The ATPLAS chamber we’re fitting has got a female three-quarter
inch thread on it. And unfortunately we’re going
onto 20 mil part like this. I went down to the suppliers, and they didn’t have any of the particular fittings we needed. It’s one of them things. I can’t get the job done. So don’t worry. They’ve already thought out
this particular problem. If you whip apart, this
is a large 25 mil here. We’re just gonna get it down to 20 mil. You can take out the gubbins here, and buy the easiest same place a reducer. It’s just like using a 22-15
mil compression reducer, or a soldered one so that’s brilliant. If you look at it closely, what we’ve got is a small rubber o-ring on here. We’ve got the same kind
of clamp arrangement, and another o-ring inside this insert. We’ve taken apart the bigger fitting. So we’re gonna pop this, and this just pops in
there just like that. There we go. In there, just like so. And the great thing is, is that
when you press down on this, it presses down on the clamp as well, so you can pop your 20-mil
pipe in here just like that. Tighten that up. And bang, you’ve reduced
your 25-mil pipe to 20-mil, and we’ve got a connexion
ready for our ATPLAS chamber that we’re gonna change in a minute. One thing I would say
about all this fittings, is kind of a little bit of a tip, is that they tend to not have a huge taper on the thread on here, so they don’t tend to
tighten up very well. So just up here like so. Make sure your PTFE runs the right way. It has to run the direction of which way your going to be doing it in. We’ve done a video on
PTFEing and how to do it. It’s really easy. Always put a fair bit on these
right at the end of thread, to almost act like a
big, fat sort of washer. Another little tip I’ll give you as well, is try to not have too much
PTFE film on the first thread. Because it is plastic, and if the thread starts to have trouble and goes cross-threaded, especially if it’s in a brass fitting, you can completely ruin one of these, and they aren’t cheap. You can start your PTFE
at the first thread, but make sure you start building up repetitive threads further back so then they can get a nice, good old grip on that thread and be OK. (singing) You spin me right round baby, right round like a record player. Right round, round, round… Right then, see here’s
where we’re working. We’ve got our ATPLAS chamber
here with our threads in it. There’s a little arrow on these as well, which denotes which way the water should flow through it. So we’re gonna be putting
it in this way round. ‘Cause our mains is
coming from over there. It’s popping through here like that, and then going into the house. At the moment there’s a
temporary metre in here that’s got a little bit
of copper on it as well. Now the thing I’ve got to
point out to you as well, is that the copper on
here is actually kind of internal, normal copper. It’s not gonna work. You can’t use standard house copper to go in the ground nowadays. Because basically it
can get rotted through by the acids in the earth. If you look at any of the old copper mains that they put back in
the 50s or something, you’ll see the wall
thickness of that copper, when you cut through
it with your pipe saws, it’s so thick it’s incredible. So all we’re gonna do, we’ve gotta little bit
of blue going in here. At the moment that’s going on a straight 20-mil to half-inch female. That’s gonna be changed over
to just a straight coupling. Then we’re gonna extend our blue pipe. We’ve got some blue here. We’re gonna pop our ATPLAS
chamber just in behind this, and then link that to the blue pipe that’s going off back to the main. So what I’ve gotta do quickly now, is just go around next door
where the main stop tap is, and turn that off. Got that done. So the next thing I’m gonna do, is I’m just gonna pop on my two unions on here, as you can see. They just screw in nicely like that. So we’ve got our chamber in position roughly where I wanna put it. We’ve got our two connexions screwed in here nice and happy. All I’ve realLy got to do is so simple. Like I said, feel this pipe, and make sure it’s not scored
or damaged or anything. The seals are amazing, really quite good at getting a decent seal on it, so it should be OK. Really all I’ve got to do is cut that pipe back to the
length I’d like it to be at. Don’t ever cut too much off
’cause we can’t add it on. I think we’re gonna be pretty good with the length we’ve got there already. So I’m gonna pop my
insert in just like so, like that much. I’m gonna lift this out. I’m gonna pop that in there. Hope you can see this all OK. Like that. Gonna nip that up a little bit, and then grab a proper set of grips. Give that a good nip up now. This wants to be tight. And then what I might have to do… I don’t really wanna get any poo inside the actual chamber itself. So what I might have to do is just dig out a little bit more here so we’ve got a nice little sort of sweeping runup, so it goes nice and
straight into that coupling. What I’m going to do, because I’ve got my ATPLAS chamber laying here, out and ready. I’m just gonna have a
look at this pipe here. It’s a bit old. We’ve got a few little bits on it. It just needs scraping
off, just on the sides. And just make sure it’s nice and clean. You know, don’t cut it like that, otherwise what you’re gonna do is cause a problem, aren’t you? Just try and brush across there. I find it’s a really good
way of sorting these out. Find out how far it
needs to be fully home, and then pop your thumb next to it, and then you’ll know exactly how far you’ve got to push the pipe. Sorry guys. Had a bit of a delay there. Unfortunately, I’d just been called out. And then I bloody got back,
and it was getting late. We had to stop for a little while. So I just had to make this up quick. The other one is next door. Now, if it won’t run,
Chris should start moaning. So the water is back off again, so I just gotta pretty much start again. It’s actually quite a good
thing that we’ve had that, because now you’ll be able to see how easy these come apart as well, when you need to do any work with them. Should be nice and easy, like a Sunday morning… (talking to self) And as you’ve seen already, out with the old thumb; the trusty thumb. A quick snip through. It’s got a nice little feel. Just make sure there’s no scores on it. That’s feeling pretty good. Just pop that on in here. Get that on up. Get that on the side,
give that last little nip. Put it like that. These have got a neoprene insert on these. They can be… They can be easy to break actually, so you wanna watch them. Don’t wanna wring off you neoprene, otherwise you’ll be getting yourself another ATPLAS chamber, and starting all over again. So, regardless of whether this video is actually about MDPE pipe. If you’re fitting an ATPLAS chamber, they usually come new
ones without the bung. So you’re gonna wanna go online, and grab yourself a bung as well. What you do, you pop that in, and then you can use it
for the couple a days, or whatever it is, until the Water Board come along, and actually winds your metre in. We’re just gonna pop that in here. Now I should just be able
to go back out to the road. Turn this water back on. Then we can test all this for leaks. Then once we’re happy there’s no leaks, we can backfill it, pop
our telescopic extender on. And then wait for the
patio guys to come along, clear all this lot out,
level it all off nice, and then make your patio up. And then you’ll just have a standard ATPLAS chamber in there
that’ll look really great and be really easy to get to. Really easy to read the metre. And also, really easy for anyone not the householder to be able to turn the water off and everything like that. So then, there we go. We’ve got it all in. It’s all covered over. As you can see now I’ve got
a nice little chamber there. (laughs) Anyway I hope you’ve enjoyed
this video. I hope this has given you a better idea about how MDPE fittings actually work. And also, showing you a little bit about how to do an ATPLAS chamber. What they are, and how
easy they are to fit, if you’ve got a nice
trench dug out already. If you need any more help or any more information, please visit out website at And do remember to follow us on Facebook and Twitter, by clicking on the button
that’s appearing right now. Anyway, I’ll see you in our next video, which is probably gonna
be more plumbing disasters that you guys have sent in. And remember everybody. To Hold tight. See you later. (Singing) Well it means nothing to me. Ohhhhhhhh Honest Reviews and Advice


  • Reply plumberparts April 10, 2016 at 10:56 am

    LOVE GETTING MUDDY! Hows your Sunday going people!? I'm playing Ping Pong and having a BBQ….just got to do a call out first!

  • Reply James G April 10, 2016 at 11:15 am

    There you are with the singing again mate!! Nice video as always. I take it the water board chaps only own the chamber in the street then?

  • Reply Mark Davies April 10, 2016 at 2:22 pm

    I want to run water to my brewshed, the only water source is my outside tap so can you do a video on how we home brewers or gardeners extend water to a shed. What happens at the shed end, how do you fit a tap to MDPE?

  • Reply ecoomber April 10, 2016 at 2:44 pm

    Very interesting, actually. But I still have no idea what an atplas chamber is or what it's for. lol

  • Reply Ed R April 10, 2016 at 6:40 pm

    There can be some serious spring in the large blue MDPE pipes, think it was either 63 or 50mm. Got hit in the face by a bit as it came out of a fitting. The resulting cut required a bit of superglue.

  • Reply Official K April 10, 2016 at 9:47 pm

    excellent video mate

  • Reply Ash Plested April 10, 2016 at 11:37 pm

    Hello mate. Are you gas safe? If so can you do some videos about boilers

  • Reply Mark Pearce April 11, 2016 at 12:23 am

    liking the video, love the sex pistol reference cover on the bench.

  • Reply Dont Get by Get Bry April 11, 2016 at 6:44 am

    Thanks once again for a useful, James. πŸ‘

  • Reply loafer sheffield April 11, 2016 at 7:11 am

    How's my Sunday going? Well, it's gone! Untersturmbannfuhrer, Joanne, (she who must be obeyed) had me out of the house wood-staining the fence. I could have been sorting out my tool boxes and organising my job diary for this week. Trouble n strife calls it playing with my tool and warns me that I will go blind! Pity it don't make me deaf as well. We've been married ten years. You only get 7 for manslaughter!!!!

  • Reply Elemental April 11, 2016 at 10:40 am

    Good vid fella!

  • Reply Ali H April 11, 2016 at 5:18 pm

    u r professional thank you.

  • Reply Chuck Norris April 12, 2016 at 2:19 pm

    Dude, did you polish off all those Stiegl beers yourself before you started, like a typical plumber?

  • Reply R-77 May 2, 2016 at 12:32 pm

    is this the same kind of plastic used on the internal white plastic fittings ?

  • Reply Tony Ackers February 15, 2017 at 5:02 pm

    I prefer the Talbot pushfit fittings much easier and quicker to use.

  • Reply Harry Thomas May 9, 2017 at 4:11 pm

    I thought you needed lagging or insulation on the water mains, does it freeze in winter?

  • Reply Stein Fakinaway May 10, 2017 at 7:27 am

    ive gotta fix a pipe and here i am doing research about the basics of plumbing on youtube

  • Reply cOnVeXFuNgUs June 14, 2017 at 3:09 am

    what a nutter! but a good nutter!!!

  • Reply Tony Taylor June 16, 2017 at 3:24 am

    I'm sitting here in my office at Philmac thoroughly enjoying your video. Well done on your very down-to-earth style and your obvious enthusiasm. We're immensely proud of this company and our products. Thank you very much and again, well done.

  • Reply Andrew Wilkinson July 21, 2017 at 8:31 pm

    Im cofused, I read you had to have the pipe a minimum of 750 mm below ground. Im at about 500 mm now running a trench from my house supply to an annex (about twelve meters run. will it be frost protected at 500 mm. Im not very keen on digging.

  • Reply Luckypip August 29, 2017 at 7:58 am

    Which do you recommend – this type or Buteline ?

  • Reply Mark Riley September 8, 2017 at 2:24 pm

    Hi ,I've just replaced an old lead water main and moved my stoptap into the understairs cupboard due to some building alterations. I now need to re route hot and cold water to the kitchen sink ,it would be so easy to tap into the cold in feed and hot out feed on my combi boiler but is this legal (drinking water wise) or do I need to take the cold directly to the kitchen sink first before it supplies anywhere else. Hope you can help thank you.

  • Reply Mat Smith October 29, 2017 at 12:20 am

    Plumbing my home from scratch and Thames Water just connected my new 25mm MDPE pipe to the street. Still need to fit internal isolator tap as it's wanging about in front yard with no stopper / tap. QUESTION: is it best to take 25mm all the way to back of house where megaflo and boiler will be, or should I convert to 15 or 22 at the incoming isolator tap at front of house? Need to get some services off it near front of house as well. What's the normal thing to do?

  • Reply justin Kassel January 6, 2018 at 3:10 pm

    Ask me to subscribe to your channel before even showing me any content? Fuck you.

  • Reply wierdwesterner February 22, 2018 at 12:48 am

    A tip for anyone watching this. Make sure you have permission from your water board to remove any water meters. Do not just remove one willy-nilly as they are property of the water board and organisations like Severn Trent don't take too kindly to you technically getting free water!

  • Reply gc19901 February 28, 2018 at 8:02 am

    you wanna be careful spinning round that many times the top of the digger might screw off lol

  • Reply tony tina March 21, 2018 at 1:23 am

    Hi, my mains water supply is a black plastic 1/2 inch, I want to fit a 15mm stopcock to it, but the 15mm compression fitting is to small, do they have a conversation kit for that plz, thank you, and your videos are great, bloody hooked on em

  • Reply Nathan Phillips March 22, 2018 at 10:36 pm

    What plastic pipe cutters are you using here?

  • Reply Cpt MishMash VonRandom April 4, 2018 at 12:36 am

    Hi. Would these fittings possibly be the reason for my meter box filling with water?
    I noticed that the only accessible bit of water main after the meter is 15mm copper and it's only about a meter away from this chamber so I assume someone has joined it to a very small section of blue straight from the meter?

    I was going to dig out a small section of ground and see if I could replace it but I'm not sure if my problem is inside the chamber or outside really.

    Really appreciate any tips. πŸ™‚

  • Reply Rob Nanco June 7, 2018 at 8:17 pm

    wouldnt use grips on the fittings, really not required. Great video for beginners xx

  • Reply Dave442 cc July 26, 2018 at 9:23 pm

    beautiful job. i had nightmare with some 3/4 polyork black mamba the other day. it's everywhere in norfolk !


  • Reply Deshawn Whitaker October 7, 2018 at 12:25 pm

    Can this work on a broken galvanized pipe? Or what can I use on a broken galvanized pipe to a PE pipe

  • Reply Laura Galbraith November 9, 2018 at 4:12 pm

    This was great explains a lot. I am taking on re-plumbing our whole house and we are going from a Black Alkathene mains inlet to after the stopcock 22mm PEX (reducing to 15mm for taps etc.) We have very high water pressure so as well as a new Stop-cock we also need a new pressure reducing valve. I have looked at a few of your videos and think I can fit the stopcock no problem, but not so sure about the PRV, cant seem to find one that is compatible with PEX. Any advice? Or links to videos on how to fit a brass PRV to PEX pipe? cheers!

  • Reply Andrew Cowan November 23, 2018 at 1:21 am

    Great video. A joy to watch

  • Reply Peter Martin November 30, 2018 at 1:57 pm

    nice work! i need to do my main off a new supply for my renovation but how deep in ground should i dig for the pipe so out of frost line!

  • Reply gaz789789 January 14, 2019 at 11:25 am

    U should use loctite thread so much better never gets leaks unlike PTFE tape which comes undone or u never know wether uve put enough on or not. Once uve used loctite ull never go back to PTFE tape

  • Reply Fintec Groundworks Ltd Ltd January 27, 2019 at 1:17 pm


  • Reply Mrs. Mad February 2, 2019 at 10:23 pm

    Stay clear of All poly pipes (last about 10 years )
    Copper lasts 30 simples.

  • Reply nearly captured March 28, 2019 at 8:54 pm

    All this is is going back 30 years for me ,glad im not getting piss wet through fixing busted pipes anymore ,,u can use grippa fits 15 to 30 mm

  • Reply inspirepics April 13, 2019 at 10:31 am

    Hello great vid. Question do you put any protection like polythene sheet over your connections before you back fill?

  • Reply Zed Man April 27, 2019 at 11:29 am

    Nice. Did your water board not want the blue pipe ducted and insulated at entry point to the house?

  • Reply christian sealand April 28, 2019 at 11:34 pm

    Why don't you guys use PEX like they do in the states??

  • Reply plumberparts April 29, 2019 at 6:36 am

    Follow my Vlog, TimesWithJames

  • Reply Gust Kola May 9, 2019 at 10:01 am

    You spin me right round looool πŸ˜‚

  • Reply roy ratcliff July 7, 2019 at 9:13 am

    Good stuff but I hate the idea of joining pipes under mud with no access to them to keep an eye on it over time.

  • Reply jackd787 July 25, 2019 at 12:29 pm

    Brilliant video as always

  • Reply RobD Dickinson August 20, 2019 at 1:13 pm

    Great vid, thanks for posting.

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