Ah! This could be it then! The overflow did happen after running the mixer shower for a long time (trying to clean the bath tub).
Thanks so much for the help
Thanks for the help :)
I now h e a much better understanding of my tank and hot water system,
I probably did not word the question very well though, when my tank overflowed the water was not coming from the float valve but from the small hole in the tank near the rim.
I have had...
So my fiancée and I moved into our first house last week and today when running a bath I found my hot water tank overflowed and leaked through the floor to the room below!
I will bullet point everything I did to lead to this and what I think happened, however I have ZERO plumbing knowledge...