Hi, have a question regarding some antifreeze systems i service. The systems were designed about 10 years ago and have appx. 560 gallons of Glycerin premix in them, and were installed with expansion piping instead of tanks. The worst of them has 3 10" pipes about 8' tall, which have been next to...
Thanks again for all of the information. The facility asked me to do their annuals on the systems out there, so i will get a better idea of how the system was designed. Glad i found this forum, and really appreciate your efforts. Regards, Chris
I texted the guy from the nursing home that originally inquired, and he said the dry system was black pipe. He was concerned that, after the acceptance hydrotest, any of the drops and pendant heads would have water in them unless the heads were removed and piping drained. The question came up...
I have a question form a customer, a nursing home, on system design. In my experience, all heads which are on drops in a dry system need to be dry heads to prevent water from freezing in the drop because the drops will not drain through the main. The customer recently had a dry syst. installed...
