[Greenbuilding] [BULK] Re: [BULK] Sprinklers-and PEX

[Lawrence Lile]

Sacie sez:

>I learned to my distress PEX can not be used in solar water systems 
because it can't take the heat, distressed because I embedded it in 
my walls and to the roof in preparation for just this.  But 
otherwise, what is bad about it?   Sacie 

Uh oh, I did the same rough-in.  If PEX will take 120F for domestic hot
water, why not solar?  Are you expecting more than 120F in a solar hot
water heater?  

A newer vacuum collector might get so hot, the older, less insulated
collectors may not.  Any experiences?  

--Lawrence