Edwin Pawlowski wrote:
"William W. Plummer" wrote in message


PEX is not suitable for fresh water in some states.


Possible, I don't follow the code for every state or minicipality. The OP
should check their local codes. .




Your hot water pipe will go along with your heating system pipes.


I'm not sure what you mean by this. PEX can be used for hot and cold,
potable and radiant heating.


Heat speeds up the reaction between Copper and the Lime in the concrete.
Your hot water pipe will suffer the same fate. PEX may have other
problems, but I am not an expert and I believe we need another 20 years
or so to see how current installations work out. Back in 1970
everybody thought copper pipe in a concrete slab was fine, but we not
know it was not.