System one reservoir capacity

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
dlockesf
Posts: 4
Joined: Tue Jun 11, 2013 5:25 pm

System one reservoir capacity

Post by dlockesf » Fri May 19, 2017 8:43 am

Hi,

Does the System One shut off automatically when the reservoir runs dry? Mine shuts off around 6am once in a while. I finally thought to check the reservoir and it was almost empty after about six hours use. There was a thin layer of water on the bottom and the heating plate was hot. I'm in a fairly dry climate (Walnut Creek, CA) near sea level. Humidity setting was 3.

The follow-up question is whether this happens to others. Either my humidifier is malfunctioning and overheating or there isn't enough reservoir capacity to get through the night under a reasonably normal set of conditions.

I'm concerned because I'm going to spend a week on the high desert next month.

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Pugsy
Posts: 42671
Joined: Thu May 14, 2009 9:31 am
Location: Missouri, USA

Re: System one reservoir capacity

Post by Pugsy » Fri May 19, 2017 9:15 am

No.... the machine will not turn off the heat to the humidifier if the water gets used up.
The machine has no way to know if there is water in the camber or not.
It will continue to heat and get hot at stink...been there and done that.

And yes, sometimes the water is all used up before 8 hours is up depending on setting and ambient humidity despite the chamber being filled to maximum and sometimes a little more.

Are you using the heated hose and that setting of 3 or no heated hose? The heated hose allows for a little more control of the water consumption.

Normally you should be able to get more than 8 hours though...even at maximum humidity setting and even in the desert.
I have used my Respironics machine in Las Vegas (really dry there) and I can get more than 7 or 8 hours of humidity and I use the maximum humidity setting and will have a little water left over.
I may have to RISE but I refuse to SHINE.

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sc0ttt
Posts: 397
Joined: Sat Apr 26, 2014 10:05 am
Location: East Bay San Francisco

Re: System one reservoir capacity

Post by sc0ttt » Fri May 19, 2017 4:08 pm

dlockesf wrote:Hi,

Does the System One shut off automatically when the reservoir runs dry? Mine shuts off around 6am once in a while. I finally thought to check the reservoir and it was almost empty after about six hours use. There was a thin layer of water on the bottom and the heating plate was hot. I'm in a fairly dry climate (Walnut Creek, CA) near sea level. Humidity setting was 3.

The follow-up question is whether this happens to others. Either my humidifier is malfunctioning and overheating or there isn't enough reservoir capacity to get through the night under a reasonably normal set of conditions.

I'm concerned because I'm going to spend a week on the high desert next month.


NEIGHBOR!

7 hours almost always empties the tank on my System One at level 3; winter or summer. If I sleep longer than that I get an unpleasant hot plastic smell. I go through a gallon of distilled water about every 3 weeks.

_________________
Mask: AirFit™ P10 Nasal Pillow CPAP Mask with Headgear
Humidifier: PR System One 50 Series Heated Humidifier
Additional Comments: 14-cm wg, Model 460, Serial Number: P10175579 4E22 SleepyHead v0.9.6 (testing)

Janknitz
Posts: 6688
Joined: Sat Mar 20, 2010 1:05 pm

Re: System one reservoir capacity

Post by Janknitz » Fri May 19, 2017 4:35 pm

My System one was always a very frugal water user--I don't live in a dry climate, but not that humid either. Are you mouth breathing by any chance as that would use up a lot of water?

There's a KNOWN flaw and the humidifiers eventually burn out on these machines--mine gave up the ghost about 3 years in. It still worked in Passover mode.
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dlockesf
Posts: 4
Joined: Tue Jun 11, 2013 5:25 pm

Re: System one reservoir capacity

Post by dlockesf » Sat May 20, 2017 10:12 am

Thanks everyone. My takeaway is that running out of water isn't the reason that the CPAP is shutting off amd that my running ourt of water in 5-6 hours is a sign of a problem with the humidifier.