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Post by endfeed on Sept 2, 2016 16:26:22 GMT
Hi chaps,Is it a bad idea to boss into a cast stack? How would you go about sealing it? Best way of drilling the hole? Do you just use a plastic strap boss? Or is it best to cut section out and use plastic?
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Post by jcplumb on Sept 2, 2016 17:15:12 GMT
I've seen them done with a strap boss and silicone or some other sealant. Never done it that way myself though.
I'd be wanting a plastic boss section cutting in if it was on my house.
In situations like this I often get the customer to commit, I'd say I can try a strap boss which will be a good bit cheaper, but you may be calling me back at a later date, or I can cut a new section in now but it will be £xx more.
That way you can't really go wrong.
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Post by tomplum on Sept 2, 2016 19:22:00 GMT
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Post by endfeed on Sept 2, 2016 20:12:05 GMT
Thanks for that tom they look the dogs bollocks! bet there pricey though!😨
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Post by rocketmanbkk on Sept 4, 2016 9:05:30 GMT
The fittings, if you cut say a straight piece out, I take it you've got to remove the top or bottom bit up or down to slip these into place?
Am I missing something?
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Post by tomplum on Sept 4, 2016 9:10:57 GMT
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Post by rocketmanbkk on Sept 4, 2016 9:23:02 GMT
Cheers Tom. I like the black rubber ones. Like slip couplers.
Thx
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Post by arfur chrysaik on Sept 7, 2016 22:08:41 GMT
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Post by tomplum on Sept 7, 2016 22:16:41 GMT
thank you thats very handy to know, arfer  |
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Post by endfeed on Sept 8, 2016 11:30:53 GMT
Does the carbide holesaw cut through cast ok? Can you use 1 1/2 inch for waste pipe into cast with these fittings?
☺
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Post by tomplum on Sept 8, 2016 11:37:25 GMT
yes you can use these for up to 2 inch waste but you need a bigger hole saw, arfer's link is for a 22mm, you'll need a 50mm, Depending on the grade of cast iron you might struggle cutting the hole, it also is a tricky job off a ladder, www.lawson-his.co.uk/draper-34940-tcghsp-expert-48mm-tungsten-carbide-grit-hole-sawI'd just like to add, I've never tried these cutters so i don't know how good they are but they're not expensive so maybe worth a try,  |
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Post by endfeed on Sept 8, 2016 11:47:12 GMT
Iv tryed it with metal hole saw before and only took the paint off😢 im gona invest in some of the carbine hole saws☺cheers guys.p.s tom l love the home made freezer kit..mint!
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Post by tomplum on Sept 8, 2016 12:48:53 GMT
yea thanks endfeed, its proving quite popular |
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