Best advice I've seen. I've been using vinegar for donkeys. Use it in kettle too. Overnight soak is all it needs. Literally falls off. Brand new again and such a cheap trick.
Just buy a bottle of cheap white vinegar, pour it in a bag, and soak your shower head in it. Crazy chucking a shower head away so often!
Hotpoint!? Good grief, you do like problems don't you. Make sure your fire extinguisher is a good one! ;)
Washing machine is covered by Hotpoint, has had new element every year almost... (embarrassed)
Ah, yeah, I grew up West Hertfordshire and it was that bad there. Live in the Midlands now and our lovely soft water is stolen from Wales. Took me a while to stop using too much shampoo, etc! You need a water softener - all your pipes and appliances are suffering from this. Bet you don't replace your washing machine every 6 months?