Distilled Water, Cannot Find In Supermarket

I'm not sure where you live.. but if you can't find distilled water at any store... you can also distill it yourself assuming you're able to boil water.

Deionized has basically the same purity as distilled water, sometimes even better.

Not sure what kind of stores you have there in the UK but distilled water here can be found at so many places. Walmart has it. Jewel/Osco has it. I've seen it at hardware stores like Menards and HomeDepot too. I'd think almost any place that sells medical supplies like Walgreens too would have it. Making your own is rather a slow, expensive procedure. To purchase what you would need to make your own could cost more than any place that sells it. I usually get mine at Walmart for $0.88/gallon.

Are you looking in the right department. I either find it in the cleaning supply section or where they keep spray starch, etc. for ironing. It's not in the drink aisle.

Do water pitchers and inline filters that claim to remove 99.9% of contaminants qualify as distilled water?

Every since the cryptosporidium outbreak here in Milwaukee many years ago all of the water I drink and my ice cubes for my beer and soda are made from a Brita pitcher.

Not sure why but distilled is now hard to find in the UK

De-ironized is fine to use for cleaning and treating bronze disease, its pure enough to do all thats needed.

Oddly its also usually cheaper to buy from the supermarket petrol stations than in the supermarkets themselves, Morrisons do it for about 50p per litre

Here is an idea, on a hot summer day, put a glass of ice water in a pie pan and wait...

Distilled water in no time... I think the cork on my coaster is starting to peel

Edit: Spelling