Originally Posted by
Furd
Really? I've seen a lot of fire suppression systems and all they had was the automatic sprinkler valve separating them from the potable water system. Maybe they don't do it that way anymore and maybe the ones I saw were grandfathered. At any rate if the fire suppression system is filled with potable water I think the comparison IS valid.
Even if I am totally nuts about the comparison of fire suppression sprinklers to a dead-ended pipe in a potable water system in a residence, how about giving an answer to the original poster?