Roundtuit Posted July 26, 2017 Share Posted July 26, 2017 First fix pumbing has started today. The pic shows the waste pipe for the ensuite basin waste. My preferred location for this would have been hidden in the stud wall that sits on the joist to the right of the current location, but that means putting a ~40mm hole approx, 40mm in from the edge of a 150mm wide joist. It would be within 400mm of a supporting wall. Have the plumbers just taken the easy option, or does anyone see a problem with doing that? Thanks. Andy Link to comment Share on other sites More sharing options...
PeterW Posted July 26, 2017 Share Posted July 26, 2017 Not sure you can - 40mm in a 150mm would cause issues as you aren't supposed to drill the chords. 1 Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 26, 2017 Share Posted July 26, 2017 Can you get two 45 bends on it to kick it into the wall as soon as it enters the room. If you check with the manufacturer of the joists they will tell you if you can drill or not. 1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 26, 2017 Share Posted July 26, 2017 Page 8 uses the word NEVER a good few times when referring to drilling into / through the chord. I'd never drill or notch one myself, not even to appease a customer . Accommodation of pipework should have been considered at the design stage so best to shout at someone else. 2 Link to comment Share on other sites More sharing options...
Roundtuit Posted July 26, 2017 Author Share Posted July 26, 2017 Ok, thanks. Waste stays where it is, and I try to minimise the impact. It's not a biggie, it just limits the choice of basin/furniture a bit, which was one of the hundreds of little details I couldn't have even tried to get my head around in the early stages! (No shouting involved, stand down the plumbing militia!?) Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 26, 2017 Share Posted July 26, 2017 You can have the stud walls just off the joists which allows you to come up inside the stud, but tbh, BCO usually start crying if you put a waste pipe in a stud wall between two habitable rooms due to the noise of the water discharging through it. Have you thought of a false stud wall in front of the main one? If you plasterboard the first with acoustic control PB then fit a false 2x2" stud wall with the pipework inside that, then ply then PB you tick all the boxes and hide all your pipework ( with the ply to hold all fixtures / mirrors etc . ). Link to comment Share on other sites More sharing options...
Nickfromwales Posted July 26, 2017 Share Posted July 26, 2017 Oh, and I've been painting with oil based paint all day, my bad ? Link to comment Share on other sites More sharing options...
Russell griffiths Posted July 26, 2017 Share Posted July 26, 2017 Do you fancy a vanity. Hides a multitude of things. Link to comment Share on other sites More sharing options...
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