IPA Dillution

[Lambchop]

If your IPA is 95%+ concentrated then you can go with a 1:1 mix. If you have a 50% or 70% IPA solution you will need to mix it accordingly to get a true 1:1 mix

Finally, as Nic mentioned above use distilled water for your mix!

Nice one Dave

Iv also noticed its difficult to find the actual purity of IPA
the stuff i got was 99% pure so much easier to work out the ratio
But some of the IPA i got from dischem never had the percentage on the bottle . So it was a bit of a hit and miss