Steam Generator Irons - Distilled Water??

[Shoppingveggie]

I had a steam generator for about 3 years which has recently packed up and is uneconomical to fix - so I went a bought a Morphy Richards one which in the instructions says you should use distilled water.

Does anyone else use distilled water for their steam generator? I do live in a hard water area but this is going to start to get expensive if I have to buy special water and filters

The distilled water is battery water for cars, you can get it in the car care aisle in the supermarkets or at the garages.

MIL uses rainwater from the water butt and never has limescale in the iron.

If you love in a hard water are like I do you can't use tap water. I have a condenser dryer and drain the water from that into my iron. I learnt this after destroying 2 expensive irons with lime scale!

I am reliably informed you can buy special bottles that you can put the water in and it does something magic that enables it to be used in irons... It might be called a deioniser or something like that?!

Mine asks for a mix of distilled and tap water (2:1).
It specifically says not to use water from dryers etc.