WHY YOU NEED A PLUMBER,If I do a job in 30 minutes,Its because I spent 10 years learning how to do it in 30 minutes. You owe me for the years, not the minutes,........................

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rocketmanbkk Knight of the brew cabin Posts: 7,006	Unvented Oct 24, 2017 18:26:17 GMT via Tapatalk Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rocketmanbkk on Oct 24, 2017 18:26:17 GMT Just reading up on these for Friday. The outlet pipe D1, is that is 15mm? The D2 is the the next size up after the tundish so I’m 22?

Plumberboy Guest	Unvented Oct 24, 2017 18:45:38 GMT rocketmanbkk likes this Quote Select Post Deselect Post Link to Post Back to Top Post by Plumberboy on Oct 24, 2017 18:45:38 GMT That's right rocky and D2 always has to be a size bigger than D1, D2 size also depends on length of travel and how many elbows there are so if you are on a long run you'd hop up to 28mm.

rocketmanbkk Knight of the brew cabin Posts: 7,006	Unvented Oct 24, 2017 18:49:38 GMT via Tapatalk Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rocketmanbkk on Oct 24, 2017 18:49:38 GMT Cheers PB