hello plumbing forum

[mandysmith]

just had a plumber lay new copper piping in my bathroom and the piping on the bends are very stretched and corrugated. ( more corrugation than my old tin shed)

is this detrimental to the pipe as it is going to be behind wetwall.

they have also used some OLD copper piping in places under the floorboards, is this normal practice the plumber said when it looks ok then it is...

not sure if im being lead on a string... PLEASE HELP.

 

[simonwalk]

Hi,
It looks like he used an internal spring instead of a pipe bender, you get wrinkles on the inside radius when you use a spring. Not pretty but should be ok.
As for the old pipes, it depends what you paid for, if he quoted for new then should use new.

 

[simonwalk]

Hi,
It looks like he used

 

[ShaunCorbs]

Hi,
It looks like he used an internal spring instead of a pipe bender, you get wrinkles on the inside radius when you use a spring. Not pretty but should be ok.
As for the old pipes, it depends what you paid for, if he quoted for new then should use new.

Not quite true

It can happen when using a bender either formers arnt clean or cheap copper pipe

Op

It won't make too much difference but if on show get them to replace them

And any new piping should be with new pipe

 

[newcastle phill]

Its usually called 'throating' with benders and my 22mm Hilmor former had just started doing it. It looks unsightly but it ok.

Was Wednesbury copper so good stuff.
Cleaned the former with rockwool and sprayed it with silicon and its fine now.
Looked like i got flux on it and caused the issue once it dried up and became gummy.
So used to good bends i didnt realise til near end of job !!!

Cheap crap benders can also do it even when new.

 

[Best]

If the plumber thinks it is acceptable to have wrinkled copper bends, then I wouldn't want him doing my work. Copper pipe these days is poor enough and creasing it is not good, although seen plenty that has lasted years.
A decent bending machine and well maintained with just an occasional clean with wire wool or emery cloth and spray of oil and never much bother.
As to the plumber using some of the existing copper pipe, - he could be right, but the "if it looks okay, then it is.." isn't always true. My way of doing things is I remove any pipework that is easy to do in a new bathroom job. Silly leaving a couple of feet of pipe just to save a few minutes and a couple of quid

 

[rocketmanbkk]

Yeah, old bender i reckon

Don't know anyone who uses a spring these days

 

[woodsy]

I do !