Hi Tony,
I have to replace a soil stack (from upper floor to ground) on a side wall of the house. It connects at ground level to a shallow inspection chamber - and I mean literally at ground level, as there is only enough depth for a single 90 degree bend connector which goes directly into the chamber (because it is close to the house wall as well....) where it is mortared in place as the inlet. This bend is currently earthenware but the top is broken and I will need to replace it. Can I use a standard plastic soil pipe 90 bend instead? The only earthenware ones I can find are too big/long radius. Will the mortar seal to the plastic, do I need to roughen it and use PVA etc? Any other suggestions ?
Regards
Geoff Hughes
Soil Stack Connect
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84-1093879891
Hi Geoff,
you can use plasticware if you like, but they tend to be more or less the same dimensions as their vitrified clay cousins. If it fits, it'll do, basically! :)
Generally speaking, there's no need to roughen the outside of plasticware - it bonds to concrete or mortar well enough. I'd pack all around with a 1:2:4 concrete outside the chamber. On the inside, you can prime with PVA or similar before sealing any joint with a 1:4 mortar and then repairing the benching with grano.
you can use plasticware if you like, but they tend to be more or less the same dimensions as their vitrified clay cousins. If it fits, it'll do, basically! :)
Generally speaking, there's no need to roughen the outside of plasticware - it bonds to concrete or mortar well enough. I'd pack all around with a 1:2:4 concrete outside the chamber. On the inside, you can prime with PVA or similar before sealing any joint with a 1:4 mortar and then repairing the benching with grano.
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71-1093879290