Rotten/rusted metal u-bend in boiler drain pipe - quickest, simplest fix please!!

[des606]

Hello forum,

Opened the press of my combi boiler yesterday to find the metal u-bend fitting on the drainage outlet has completely rusted through.

I always though this set up looked dodgy - it goes plastic pipe vertically down from boiler, this now rusted brass/copper/alloy ubend and then a metal pipe through the exterior wall to drain outside.

Please advise on the most sensible and simplest fix here.

Help much appreciated.

Thanks

 

[danfre]

That's probably the condes pipe.
This should all be run in plastic as it acidic and as you have discovered attacks metal

 

[Razor900]

Do you have a zoomed out picture of the whole boiler?

 

[denso13]

Easiest DIY fix is to just replace the body of the elbow, reusing the existing nuts and olives if they are ok. Can't quite tell if the top one is ok.