There was boiling water in the the cold water tank I dropped it from cold tank and the tank has collapsed . Can you give me the requirement in law about the immersion needing a cut out as I can use this against Dyno Rod that they should of done it when Plastic tank was upgraded ?Only on a solid fuel system is there a requirement to fit a galvanised header tank (because SF cannot be fully controlled).
Bobs 100% correct about thermal cut outs being a requirement on all Immersion heaters since the terrible accident of a baby being scalded to death by one over heating quite a few years ago now.
The new leaking storage tank is probably due to poor initial workmanship than boiling water from a faulty immersion.
I dont think, sadly, there is a requirement in law to check and/or upgrade any immersion not fitted with the new type of Stat. I can understand why you would think using a large name company should get you good service, sadly that is not always the case. Particularly with the franchises, they have to pay a lot of money up front to use the name, so in order to make any money, costs have to be carefully managed, and it's not always guaranteed you'll get the best people.
Ah, the plumbing jigsaw pieces now fit together diy (expansion pipe missing tank).
Regulations are not retrospective diy, hence, if it was legal when it was fitted it's still legal today (in spite of new different ones being more recently passed).