Discuss Jointing plastic strap boss to cast stack. in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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Clint 1979

Gas Engineer
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Hi all,

I know connecting plastic waste to cast soil pipe has been covered in other posts but my question (which I can't find an answer to) is this......

When connecting a plastic strap boss to cast, what would/do you use to seal the strap connector to the cast??

Also is there anything on the market like a Tank connector with a split washer and dense rubber sealing washer (like the Essex Flange) that can be used, with a spigot to connect 1 1/4" 1 1/2" waste?

I have fitted the Mcalpine pipe boss connector into plastic soil for condensate before but not sure if that fitting can be used on cast??

Thanks for any advice

Clint
 
Thanks goz666, that's what I used before on a plastic stack for condensate, I see screwfix do the mcalpine one which takes a 57mm hole instead of 22mm so will probably give that one a try.
Definitely worth adding some sealant of some sort as it's under the floor in a bathroom.....might even stick a couple of long cable ties round for belt and braces :)
 
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