Originally Posted by imott
I wonder if the acidity or salt will have an adverse reaction to the rubber seals designed for use with plain water as well as the lining of the shrouded tubes.
I built a small brewery years ago and used the same shrouded tubes described. After a while I started noticing off-flavors in the beer only to discover it went away when I re-plumbed them with flexible copper pipe.
It probably would have an affect long term, but hopefully washing and running clean hot water through it after every use will maximize its life span.