Posted 6/5/2015 21:36 (#4610897 - in reply to #4610618) Subject: RE: Sharing hot water with shop radiant floor heat?
NW Montana
what antifreeze was installed and at what concentration? It should be no higher than 50% and closer to 30%.
When flushing use Muriatic acid diluted to around 6 to 1. You may need to test your water for nitrates or other organic compounds http://treatment.hohwatertechnology.com/category/chemical-treatment...
if your running a high water temp it may be breaking down the glycol.