I was at my grandma's house today, just checking up - they have gone away for 3 weeks, when i opened the airing cupboard and found the floor was wet. I found this was the cause, a rotten old seal of some sort. The pipe obviously goes nowhere (it used to feed an old shower, now replaced by an electric shower), so could this outlet from the cylinder be capped off somehow?
I have turned the water off at the mains, drained the feed cistern in the loft, and left it empty. I made sure the heating is completely off and the immersion is off too. Will the cylinder now be completely empty? Or is the water drawn off from the top? (theres that many pipes going up down and around this sylinder that its hard to tell)
I am going to get my uncle to see to this, he is a plumber of great experience, i was just wondering about how this will be solved.