When pex fiorst came out this was true. I agree with attaining a letter from the manufactuer if you go with pex as I would do the same with copper or any pipeing used in the house for drinking water without purification. If you get to the nitty gritty of everything the details frighten everyone...
Hey,
Here is some info on PEX for you in california http://www.californiapex.com/?tag=safe-drinking-water-act . I would also like to add you can get shark bite fittings wich involve no crimping and they just snap together http://sharkbite.com/ . I would look into it these systems are even...
I like copper to but if you think about it your water comes from the city anyways so either way its passing through a piece of plastic. Pex is durable all the way around and will out last eveything but I am not knicken down copper or anything pex is just better I always recommend it to my...