i want to fit a boss to a cast iron stack as the existing sink boss is too high anybody done this
boss in cast iron stack
- Thread starter billybob150811
- Start date
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Hot&Cold
Do a search for' cast iron strap on boss with gasket ' they are expensive items £50 approx and you will also need a suitable size starett hss hole saw.
Happy plumbing
Happy plumbing
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i use a McAlpine one and never had any trouble with them.
here's a link: https://www.screwfix.com/p/mcalpine-mechanical-pipe-boss-connector-black-40mm/55722
you'll need a new or very sharp 57mm holesaw and use it on low speed in the drill, it'll go through like a hot knife through butter!
although it says you don't need to, i always put a little silicone on the fitting where it buts up against the soil pipe. 'just in case'. also, make sure it's the right way up, (it has TOP printed on it)
here's a link: https://www.screwfix.com/p/mcalpine-mechanical-pipe-boss-connector-black-40mm/55722
you'll need a new or very sharp 57mm holesaw and use it on low speed in the drill, it'll go through like a hot knife through butter!
although it says you don't need to, i always put a little silicone on the fitting where it buts up against the soil pipe. 'just in case'. also, make sure it's the right way up, (it has TOP printed on it
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