Supporting Cast Iron DWV Pipe

Apr 09, 2008 28 Replies

You know, now that you mention it I need to have blocking in between the joists in at least 2 places anyway. So I may actually just do that! Joists are 2x10.

Cheers, Wayne

After living in a house with quiet cast iron drains, drain noise at others houses with plastic drains just seems obnoxious and tacky.

If you enjoy hearing every flush go by, more power for you. I'll pass.

While I can see your point about the noise (it isn't that much more), I keep wondering just how many cast iron joints you have done. The job is not 'simple' and takes a few special tools. Even done by professionals doesn't gaurantee a leak proof joint over the course of years.

Harry K

Precisely zero. But modern cast iron is no-hub, I'm pretty sure it is just like using Mission rubber couplers to join dissimilar pipes, and I'm plenty familiar with that.

Cheers, Wayne

You have done your homework :-)

Fernco has a .pdf on the No-Hub coupling series here:

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Correct. We just had some cast iron installed at work. Code does not allow for plastic in commercial/industrial facilities and it was all put together with Fernco parts.

obviously you dont know how noisey PVC pipe is

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