Which is the best to use? Saved some money on plumbers fees? Use the thanks button. Or through Paypal using my site link www.dereton33.com/page118.html Many thanks Al.
thank you for your clear and candid explanation. I was confused as to whether to use ptfe tape or some pipe jointing compound to stop leaks in my radiator. now I know. Great to know about older techniques for stopping leaks like the hemp fiber.
Really useful video thank you. I’ve just seen you have a new one 2 days ago so will watch that too. Love your tone of voice and I can tell there’s a wealth of knowledge so thanks for sharing!
Thanks Dereton. I always use Fernox jointing compound for compression fittings. I never find using PTFE tape never really effective on its own. An outside pipe, which is adjacent to my outside tape, was ‘weeping.’ I used PTFE tape, but it didn’t resolve the problem. However, after using jointing compound paste with PTFE tape, it did the trick.
@@dereton33 Thanks Al. I’m only a ‘jobbing’ plumber, who has limited knowledge and skills, hence I appreciate your extremely helpful on line tutorials.
When I install radiators I usually do 23 to 25 wraps. If I do less, then the tail doesn't get tight by the time my spanner starts touching the rad. I have recently bought some loctite 577 to test out. I have had some success with loctite 55 as well. One day when I have the time I will probably do some sort of test to see what happens when I only do 6 or 7 wraps like some of the rad valve manufacturers say.
i rarely use anything, unless like you say it is a used fitting that is undone and re used, i tend not to use compression though unless unavoidable, can't beat a good solder joint.
There seem to be two types in general, one that you can use for drinking water (non-toxic) and one you can use for non-drinking water (central heating systems?). I used some on water pipes this week for the first time to put some bib taps on. I used ptfe (wound the right way for the thread so it won't unravel when you screw it on), and then the jointing compound. The first try weeped a little so I used more ptfe near the base of the tap thread and the jointing compound, then left it a few hours with the water off, even applying some gentle/ambient heat to help it harden up a little and it was ok in the end on a full pressure cold tap. This is what I used - www.toolstation.com/fernox-water-hawk-jointing-compound/p14953
My pet hate is when people wrap p.t.f.e around compression joint threads. Perfectly fine to wrap it on the olive itself as that seals the integrity of the joint. Thanks for sharing Al 👍. Quick question I generally use white tallow for pulling cables through conduit. Are there any applications it can be used for in plumbing?
It used to be used in wiping lead joints, it is good though for pasting string and using for packing material in leaking stopcock gland and rad glands.
@@dereton33 Ok so it's similar in property to liquid p.t.f.e or silicone grease. I'd guess more like p.t.f.e myself. I'm going to give it a whirl on some joints. I have a massive bucket of the stuff 😊, Thanks Al 😉
Not a fan of PTFE or Locktite. I still use jointing compound and hemp on all threaded joints and jointing compound on all compression fittings. Never lets me down. I do use PTFE to repair leaking packing glands though.
4:20 never used the hemp before, not sure about doing my new radiators, any other tips on fitting the valves to the radiator? not sure if i will do that myself or relent and get someone in to do it for me.
Quick question, you say to use PTFE tape on all threads but on your how to remove a radiator for decorating there wasn't any PTFE tape shown when disconnecting the pipes from the radiator or when reconnecting the radiator. If there isn't any PTFE tape on the valve thread when I disconnect the radiator, should I put some on when I reconnect it?
Correct me if I'm wrong but it seems to me with both the tape and hemp you've wound it in the wrong direction? So it will tend to unwind when you tighten the nut??
@@dereton33 I am so sorry, I made a dreadful mistake. In both cases you were in fact winding the tape and hemp clockwise around the thread ie in the SAME direction the nut is turned to tighten up the fitting. I've watched many of your videos and always found them very well presented and very well explained. My apologies again.
@@dereton33 It isn't about death, but bacterial infection.The safety data sheet (COSHH) states that hemp is not suitable for use with potable (drinking) water. It's worth viewers knowing of the risk and recommendations.
