Speedfit questions......

newbiejim · 15 Jun 2013 at 21:11

As an update to my numerous DIY adventures this summer........ Central Heating now seems ok I've moved onto bathroom :eek:

, after much wailing and gnashing of teeth getting nails out of floor it was time for the bath to come out.........no prob there except a cast iron bath is stupidly heavy.....anyways that didnt give me much hassle.............the compression fittings on the other hand lol.........the one on the right blew off like a geyser, I HAD noticed that the original pipes were 3/4 and i DID use 3/4 olives (some bodgers use 22mm but way to dodgy for an amateur like me), anyways as far as I can tell......I put the olive on not far enough and the wrong way up....AND lots of youtube vids tell you 3/4 of a turn should be enough, imho not the case when using brass olives on to an old thicker walled 3/4 pipe.........anyways no damage done, bout half a basin of water all over the place but I sprinted to the stopcock like Usain Bolt :eek:

Nightglow · 15 Jun 2013 at 23:14

See your still having fun.

You can split a compression fitting collar f you over tighten it.

I'm old school & prefer to solder a end feed coupler metric / imperial 22mm x 3/4" copper, instead of using compression.

If you got plastic waste connected to old copper waste pipe, replace the lot with solvent plastic, will save you a lot of grief.

newbiejim · 16 Jun 2013 at 09:22

I think I would be happier with soldered joints too in this instance, pressure here is 8 bar btw :eek:

My plumber friend also advised to construct totally new waste exit to avoid hassle, I might get a second mortgage to pay him to move WC too as this involves coring a huge mofo hole in the wall lol, I'm a bit scared of that, though conceptually it seems straightforward.

Nightglow · 16 Jun 2013 at 09:44

newbiejim said:
I think I would be happier with soldered joints too in this instance, pressure here is 8 bar btw

My plumber friend also advised to construct totally new waste exit to avoid hassle, I might get a second mortgage to pay him to move WC too as this involves coring a huge mofo hole in the wall lol, I'm a bit scared of that, though conceptually it seems straightforward.

Water pressure 8 bar. Wow! :eek:

Easy job to drill the hole, if you have the drill & core bit, never had any problems when I've done it, awkward bit sometimes is joining the plastic fittings together when up a ladder, otherwise leave it to your plumber mate.
Get him to replace complete stack pipe if it's cast iron, will save you a lot of grief, got a mixture here of cast & plastic, & the problems it has given me, will be completely replaced later.

And with waste pipe use solvent weld, not push fit, hate push fit, it has no place in modern plumbing nowadays.