Thanks. I was thinking of doing it that way but one of the codes I found
seems to indicate that only approved adapters that are made for transitions
from one type of material to another are allowed. I am not sure if I am
reading that correctly. However, since they do make adapter fittings
(transition unions, I think) that are specifically made for going from CPVC
to copper, I'll probably use those.
The property already has 3 separate hot water heaters and 3 separate
boiler/furnaces -- one of each for each apartment. So, I will be changing
from the one meter that is there now to 3 water meters -- one for each unit.
Thanks everyone. Final update -- we finished the project last night using
all CPVC pipe and fittings plus the transition adapters to connect the CPVC
to the existing copper. It worked out great and now the water is completely
separated out for each apartment unit as planned.
I am REALLY appreciative of those who pointed out that the code no longer
allows for PVC for cold water distribution within the dewlling, and that
CPVC is now required for both cold and hot distribution lines. So, we went
with all CPVC and we used the one-step yellow no-cleaning-solvent-required
type of CPVC glue.
I had some sticks of CPVC left over from a project about 10 years
ago. They were stored inside my shop. When I went to use them for
another project this week, I found that they had turned brittle, to
the point that PVC cutters would shatter them rather than cut thru
them. Don't know what this says about installed CPVC other than I
hope I never have to splice into an older install.
Were your pipes exposed to sunlight? If I remember correctly, CPVC does not
have UV protection, which would probably cause the pipe to break down in
sunlight. (Grey PVC conduit does have UV protection).
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