Looks like the Norm for 90% of the systems out there. Had one in Philly in a vault that was completely submerged in water and frozen solid and they couldn't figure out why I didn't do it??? DUH. Took pictures and submitted them instead and said if you have a blow torch fine if not see ya in the spring.
“The beauty of the Second Amendment is that it will not be needed until they try to take it.Thomas Jefferson
This is CABL.com posting #230852. Tiny Link: cabl.co/m8dA