Gentleman,
Thanks for the help. I called the manufacturer again today and the tech was extremely confident that the foam core would work fine. I also spoke to the local inspector who was also sure it would work properly.
My frustration is that the foam core was not specified but...
My wife and I are building a house. The builder(gen'l contractor) was instructed to use Schedule 40 PVC and now we see there is Schedule 40 Foam Core in the house (including the exterior waste lines). The walls are not yet closed. The builder & plumber said that Foam Core is they typical...
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