Zone valves, or else known as drain valves, Price in between $100 to $300 to interchange on ordinary. A faulty zone valve is responsible for numerous problems, like leaks and mineral Develop-up within the system. These valves also corrode and rust more conveniently than other factors with the boiler. On https://radiator-repair55320.blogvivi.com/31489711/the-5-second-trick-for-heating-repair