Rippled bend in copper pipe

[Chiplet]

Hi all

I'm seeking some advice on a job I've recently had done. I've had a new radiator installed and on inspecting the job more closely I've noticed some 'ripples' on the inside of the copper pipe where it has been has been bent. It's not severe and the plumber has assured me it won't cause any issues and is just a result of thinner pipe.

I'm a complete newbie to this so am I being a bit OCD thinking it will cause a problem? It's under a floor so just need to make sure it's all ok and will last for many years.

I'd appreciate any advice or info!

Many thanks

 

[dancinplumba]

It is OK

 

[woodsy]

It will be fine, copper is much thinner walled nowadays and ifs it's been bent the old fashioned way, then this seems to be a consequence more and more.

 

[plumben]

Theres nothing wrong with rippled pipe, its not more likely to burst or anything,
its just an eyesore and not best practice but sometimes its not worth lashing the lenth of copper for a few ripples

 

[Barry98]

Got a pic ?

 

[Chiplet]

Thanks for the quick replies guys. I know it was bent in a handheld bender, it's got a couple of 'indentations' per bend on the inside radius.

I've tried attaching a picture but I'm getting 'post denied' - maybe because I'm a new user?

 

[Best]

Poor quality or corroded/neglected benders can ripple the copper. Your plumber won't like you suggesting that, though!

 

[Ermintrude]

Bend by pulling the lower arm up instead of pushing top one down. Works a treat

 

[REDSAW]

water travels faster on the outside of the bend than the inside, if it was on the outside that would be different

 

[Ermintrude]

Also ripples form small kinks and edge = thinner wall