what types of water can be used?

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Originally Posted by MarkS

Ahh, no. RO which stands for reverse osmosis is a filtration technique that forces water under pressure through a semi permeable membrane in order to overcome 'osmotic pressure' (hence the term 'Reverse Osmosis') This filters out many types of molecules and and ions and bacteria and and is often even used to make seawater potable because it removes the salt from the water. Reverse Osmosis is a filtration technique and that's ALL it is.

What YOU are probably talking about is heavy water which is actually Deuterium oxide instead of Hydrogen Dioxide, it's water that is made of up the heavy isotope deuterium instead of the common hydrogen isotope. Heavy water possibly IS somewhat dangerous to drink in large amounts. It may ALSO be filtered through a reverse osmosis unit in order to make it more pure, I don't know, but whether it is or not has NOTHING to do with how safe it is.

Reverse Osmosis (RO) is only a filtration technique. It can make even polluted water safe to drink. And speaking from personal experience it can make water that contains a lot of iron and minerals taste a LOT better.

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Agreed ^^

And for OP I go with tap water or purified water for my reps...whatever I'm drinking they will...In the summer I find that there are more particulates in tap water so I filter in the winter there are less so I am fine with it. As for your mistking if you want spot free glass or plastic you will want to go with RO water. :gj: