How to seal copper pipes, plastic pipes and sanitary ware. 

dereton33, plumberparts and ultimatehandyman - the Open University of plumbing. Thank you.

It is only in recent years that I have found out about many of the products in your video. It’s the stuff that weekend DIYers don’t know about, like me previously, and can’t understand why they can’t stop their joints from weeping. I always used to think I just wasn’t very good at plumbing, but now I realise it was just my ignorance of how to do stuff properly. Wish I’d seen your video a few years back as it could’ve saved me a hell of a lot of pain and anxiety!

Heating & plumbing engineer here, jet lube V2 all the way for me. Denso or self amalgamating tape is usually used on pipes or copper pipe going under or through cavities. To prevent reaction or corrosion.

Thanks. I asked in B&q today about sealing those compression valves with copper pipes. They said you don't need a compound. Just that white tape will do. Once you tighten the screw it activates the "rose" inside thereby giving a seal. That has worked for me. Been killing my back trying to sort the toilet out, last 2 days.

Great review on jointing compounds. I've been using jet lube, which is superb. I highly recommend this stuff an equal too boss white.

Wow, that was quick! Thanks for the info. Regards Darren.

Thanks for that explanation, useful, and, from a very experienced plumbing engineer we know it is bang on. Peace be unto you.

Thanks for the info arfan I will add a note on the video. regards al.

Love your videos! I always pick up tips from you! But there is no substitute for experience! I just do enough plumbing to get by. Thanks 👍🏼

Thank you good sir, I have watched a lot of your videos very handy

Boss white and hemp is not allowed with potable water anymore but it used to be real good. Used on steel pipe you couldn't get anything better!

Thanks very much your video are very informative and easy to understand ✌🏻💯👍🏻

I thought I come to see if Al has any solutions for my waste pipe that is in full sun and good 28 years old, and voila found what I was looking for! Although the pipe is not leaking I have discovered that it seems to be deteriorating in the sun and one edge is disintegrating so wanted to prevent any further damage by using some form of a tape. Thank you Al I will be searching for that last tape you have shown. 😘

Thanks for the tip on Fernox jointing compound. In stock at Screwfix and Toolstation so will be adding that to my inventory. I'm not a plumber by trade so not familiar with the finer art of it. I've been using PTFE till now which is a pain to wrap on a pipe in a confined area.

Denso is usually used for a temporary repair on plumbing leaks mainly on outside waste pipes soil stack leaks ect. It is rotten stuff to work with. Regards al.

if i'm replacing the ball valve unit on cold water tank does one use tape on the threads? tks

No worries Darren if you think of anything else just let me know. Regards al.

Just the advice I’m looking for. Thanks

This guy is great

Good work

*Thanks for the info..! Good to see more our lads ‘British’… putting out some good informational videos..! Sick to death of listening to Yanks..!* 😆

tks nice video

Do you need to roughen the thread up first when using hemp? Also, do you wind it in the threads or across them like loctite 55? Thanks, great videos by the way.👍👍👍

hi al great video. fernox do make a jointing compound for hot and cold drinking water (portable water.) available from screwfix and the like. many thanks

Changing the radiators at home. I’m not a plumber though. First used the PTP tape then it leaked a tiny bit so disassembled all the 7 reads dried them and used Fernox this time. It doesn’t leak at all now. Strange that this stuff is still a bit soft. Is it going to set one day or it remains soft? Just wondering if I did something wrong. Used the Fernox potable version. Nice vid by the way! Loads of help!

Hi D, hope you don't mind me asking a question about a different video, I have a kitchen tap that needs turning a couple of times before any flow emerges, I watched your vid on the top of the tap coming loose on the left hand thread from the bottom, I have just stripped it down and that bit was tight, but the circlip was in the wrong place and looked like it had worked it's way loose, I put it back in the right place but it seems very loose, am I right in thinking that a dodgy circlip would have the same effect, eg needing to turn the tap a lot before any flow? thanks for all the vids, watched a lot of them and always find them interesting, Paul.

do you put a treatment on every compression fitting you use, Boss white or other

@dereton33. Hey i have bit of a nuisance fitting. Recently fitted a triton shower and having problem with a compression elbow to inlet on shower. My problem is 2 fold i believe!!! The actual Male THREAD on the elbow has slightly worn away while tightening. ((I really should replace the elbow but that will involve ripping out tiles, backer board and possibly cutting the old fitting off with pipe cutter. Then I'll need to fit new strip of copper to old length with ANOTHER compression coupling as the olive most likely wont come off and thats all before even fitting the new elbow. Arrrrrrr - a nightmare as I was simply planning to fit new shower and job done)) I mean the more fittings the more chance/possibility of leaks.. correct? Now, all that being said, after connecting inlet to the elbow i cant get the drip to stop. I've already tried lots of PTFE which helped but doesnt seal. So i was thinking Jointing compound might do the trick. My main questions is as follows. Do you think Jointing Compound will remedy my nightmare or once a thread has perished ONLY replacing the fitting will do? PLEASE PLEASE PLEASE tell me the Jointing Compound might work.

What would be best to use between bath and taps where a new tap washer won't cover the old tap hole? It's a steel bath with square cut holes. The base and threads of the old taps were covered in a clay material. Any advice you can give?

Hi, is plumbers mait durable enough for the job, If plumbers mait doesn't set would it be susceptible to damage and therefore eventually leaks if say knives or forks are put into the sink and they hit the putty under the waste rim?

nice vid, by the way all you budding plumbers, its potable (drinkable) not portable in this case.

Hi Al. What do you use Denso tape for? Thanks

I always use fernox LSX, and never had an issue.

can i use plumbers mait on downpipe?

How does the jointing compound work, why doesn't the leak just blow through the compound?

Boss white or plumbers mate? while fitting an immersion element?

Great video cheers,is boss white same as fernox jointing compound

I was working on a toilet with leak from tap connector. I fixed the leak but had created another leak from the doughnut as this was inevitable due to the fact that the existing rubber doughnut was in a bad state but this must of only started leaking as I had moved the toilet slightly when working on tap connector. I communicated this to the customer and they did not want me to go to the plumbers merchants and buy other parts but I used a universal rubber washer and had to still use existing metal plate that was rusted quite bad. It was still leaking when flushed and so I added plumbers mate around the rubber doughnut on top and to the side which solved the leak. I explained to the customer but they were happy with the end result. Is this a ok way that I had gone about this job?

Hey there whats the first product you used called please

I wish I saw this video a few weeks ago, I could have done with that sylglas tape to do a temp fix on a toilet waste pipe that was leaking.

No not on the threads .If you are removing the whole valve out of the tank instead of splitting it as shown on the video you will need a new tank connector washer (a straight swivel washer) or you can use ptfe tape rolled into string and wound around where the washer would go (I prefer hemp). Kind regards, al.

I just use Fernox LS-X

Boss green for potable water, boss white for anything else.

A