U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Health and Wellness
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Old 03-12-2015, 10:33 AM
Location: Columbus, Ohio
124 posts, read 141,064 times
Reputation: 159


Why is using tap water (as opposed to distilled) a no-no for a C-PAP? Just before going to bed last night, I realized I was out of distilled water, so I got dressed and went to a convenience store to buy a jug. I'm set for the next few nights, but could I have gotten by filling the tank from the kitchen faucet just this once?
Reply With Quote Quick reply to this message

Old 03-12-2015, 11:14 AM
Location: Portland, OR
9,597 posts, read 9,437,293 times
Reputation: 9210
All water (except distilled) has dissolved minerals in it. Mostly calcium and magnesium. When water evaporates the mineral solids precipitate out as a fine white dust. In the confines of the closed system of CPAP mask/human lungs and over a six to eight hour sleep period... cough, cough... you probably wont die but... cough, cough... so good on you that you bit the bullet and got some distilled water for your tank. A gallon usually lasts me weeks and is only around $0.80 at a big chain supermarket, so buy a couple of them there and you won't have to be gouged by the 7-11.

Reply With Quote Quick reply to this message
Old 03-12-2015, 03:48 PM
Location: Paradise
2,413 posts, read 1,810,863 times
Reputation: 3927
I don't think using tap water short term would cause too many problems. I've had to do it for a week or so when on vacation and didn't have access to distilled.

For one night, I wouldn't question using tap. But generally, I keep distilled on hand as well.
Reply With Quote Quick reply to this message
Old 03-12-2015, 08:50 PM
Location: Fredericksburg, Va
5,120 posts, read 12,739,843 times
Reputation: 7222
Once in a while, it won't hurt...but if your water has minerals in it (especially, well water), it will destroy the machine. It won't hurt you....it's about the machine getting gunked up!
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.

Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Health and Wellness
Similar Threads
Follow City-Data.com founder on our Forum or

All times are GMT -6.

2005-2018, Advameg, Inc.

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top