A short video on how to remove and clean the flow meters in your Myson underfloor heating manifold.
After some time, my flow meters were coated in corrosion, and you couldn't see which circuits were active. Removal and disassembly is easy, cleaning takes some time, but is not difficult.
I am not affiliated with Myson, nor am I a heating engineer - if you don't feel comfortable doing this task yourself, hire a professional to tackle it for you - goes without saying that I can't be responsible for any damage you may do to your heating (or yourself) if you attempt this.
