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Distilled vs Tap water
#1
Hi all. Just signed up and learning a lot from the threads. I started using my cpap 20 days ago and so far,so good. On my first visit, I met with a respiratory therapist and he also uses a cpap. I was told when first setting up to always use distilled water in the humidifier, be he said to just use tap water and distilled was unnecessary. Anyone else been told two different methods?



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#2
Hi Airborne482!

Welcome

The manufacturers say to use distilled but most of us around here use tap water. I think it may be a lawyer thing.
#3
You will get all kinds of opinions. We have hard well well water. If I use that, the solids will settle out. It won't hurt anything but it will not look good. I only use distilled. At $1 per gallon, 128 oz per gal, that's 43 nights. Or <3cents a day. Not too expensive and my humidifier looks like new after 9 months.

I put 3 oz in each night and empty it each morning.
CPAP is a journey like “The Wizard of Oz”. It’s a long slow journey. You will face many problems and pick up many friends along the way. Just because you reach the poppies, it doesn’t mean you are in Kansas. 
#4
You will get different opinions on this. I've never used anything but distilled water. Water chamber looks like new after two years. I do wash it with dawn dish soap every couple weeks and rinse well.



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#5
The main problem with tap water is if it is from a source with a lot of minerals, such as water on a long river or in a big lake that's fed by long rivers. This can cause minerals to build up in your humidifier.

Tap water will be pretty well sterile unless your water supplier is incompetent.

Distilling water removes the minerals but the result is not necessarily more sterile than tap water since city water is almost universally sterilized at the plant and will remain so at the tap.

If you live in Flint, Michigan definitely go with the distilled stuff!
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#6
Hi Airborne482,
WELCOME! to the forum.!
I use distilled water. I have tried tap water from a purifier, but I found that my tank was getting coated with deposits after a while.
trish6hundred
#7
Distilled water for me , also. My water chamber looks brand new after a years use.
#8
Really depends on your tap water source. While I am a maniac about the air filters, I can get away with tap water as in NY City it is very low in any mineral content or particulates (verses the air that requires new disposable filters at a minimum every 2 weeks - 1 week in the winter). Wash the chamber every week, rinse daily.
#9
If you use tap water, be sure to dump the residual from the previous night, rinse or wash the chamber and re-fill. This will help slow the build-up of any mineral deposits. (This works for 'normal' tap water, but if your tap water is highly mineralised and you get build up in just a few days, best to use distilled water)



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#10
I think everyone ought to use distilled water. Inhaling chlorine is unhealthy. We were taught that you need a filter in your shower as much, if not more than on your tap because it is more toxic to inhale chlorine than to ingest it since the chlorine gas we inhale enters directly into our blood stream. Research has demonstrated that the cancer risk that is associated with chlorinated water may actually be due to showering rather than drinking the disinfected water. Some water systems use chloramine. Which is chlorine plus ammonia. This is even more toxic.


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