Help with testing pressure at home

Country4ever · Post by **Country4ever** » Thu Sep 15, 2022 8:09 am

Hi all. I've tested this way before, but forgot about it until I read Tomjax's directions from awhile back. I tied the end of the hose to a ruler, making sure the water level in the container was about 6". Then I put the tube to the bottom of the container and slowly raised it up. Just a warning.......when it starts to bubble, it's like a volcanic eruption....so be careful of furniture, etc., around you. Okay.........so my setting on the Resmed 9 machine is 9.6. It started "erupting" at 3 and 1/2", which is 8.9cm.
Beforehand, I did take off the little tube that goes from the big tube to the mask. Would that have changed the pressure? Is 8.9 close enough to 9.6? (I adjusted it in the past to this setting...so that's why it's not a round number.) Any suggestions? Thanks!

LSAT · Post by **LSAT** » Thu Sep 15, 2022 8:47 am

I have taken my machine to a local DME and she tested it with a hydrometer in about 3 minutes...no charge.

Rubicon · Post by **Rubicon** » Thu Sep 15, 2022 9:11 am

LSAT wrote: ↑
Thu Sep 15, 2022 8:47 am
I have taken my machine to a local DME and she tested it with a hydrometer...

I hope not.

A manometer would work better.

lynninnj · Post by **lynninnj** » Thu Sep 15, 2022 11:50 am

Rubicon wrote: ↑
Thu Sep 15, 2022 9:11 am

LSAT wrote: ↑
Thu Sep 15, 2022 8:47 am
I have taken my machine to a local DME and she tested it with a hydrometer...
I hope not.

A manometer would work better.

A man-o-meter?

-thinking back to prior thread about hero men in thights-

nevermind

I never even thought about testing. Part of me thinks why would I care as long as it works.

Rubicon · Post by **Rubicon** » Thu Sep 15, 2022 12:59 pm

lynninnj wrote: ↑
Thu Sep 15, 2022 11:50 am

A man-o-meter?

Yeah.

That thing you (guys) were talking about in the other thread:

babydinosnoreless wrote: ↑
Fri Sep 09, 2022 10:02 am
I know for some reason you guys feel the need to whip out your measuring tapes ...

palerider · Post by **palerider** » Thu Sep 15, 2022 2:31 pm

Country4ever wrote: ↑
Thu Sep 15, 2022 8:09 am
Hi all. I've tested this way before, but forgot about it until I read Tomjax's directions from awhile back. I tied the end of the hose to a ruler, making sure the water level in the container was about 6". Then I put the tube to the bottom of the container and slowly raised it up. Just a warning.......when it starts to bubble, it's like a volcanic eruption....so be careful of furniture, etc., around you. Okay.........so my setting on the Resmed 9 machine is 9.6. It started "erupting" at 3 and 1/2", which is 8.9cm.
Beforehand, I did take off the little tube that goes from the big tube to the mask. Would that have changed the pressure? Is 8.9 close enough to 9.6? (I adjusted it in the past to this setting...so that's why it's not a round number.) Any suggestions? Thanks!

You'll get an approximation or pressure by doing it that way, but to *properly* measure the pressure, the machine should have a vent going on. When I test pressure, I put an oxygen adapter in the hose and attach the manometer to that, and use the mask vent to provide normal venting while pressure is measured.

lynninnj · Post by **lynninnj** » Thu Sep 15, 2022 3:06 pm

palerider wrote: ↑
Thu Sep 15, 2022 2:31 pm

Country4ever wrote: ↑
Thu Sep 15, 2022 8:09 am
Hi all. I've tested this way before, but forgot about it until I read Tomjax's directions from awhile back. I tied the end of the hose to a ruler, making sure the water level in the container was about 6". Then I put the tube to the bottom of the container and slowly raised it up. Just a warning.......when it starts to bubble, it's like a volcanic eruption....so be careful of furniture, etc., around you. Okay.........so my setting on the Resmed 9 machine is 9.6. It started "erupting" at 3 and 1/2", which is 8.9cm.
Beforehand, I did take off the little tube that goes from the big tube to the mask. Would that have changed the pressure? Is 8.9 close enough to 9.6? (I adjusted it in the past to this setting...so that's why it's not a round number.) Any suggestions? Thanks!
You'll get an approximation or pressure by doing it that way, but to *properly* measure the pressure, the machine should have a vent going on. When I test pressure, I put an oxygen adapter in the hose and attach the manometer to that, and use the mask vent to provide normal venting while pressure is measured.

OK goofy question but I have to ask.

What do you do with this information once you have it? What is the relevance? I’m all for gathering data but I just didn’t know what you did with it.

Jlfinkels · Post by **Jlfinkels** » Thu Sep 15, 2022 5:17 pm

Easy peasy lemon squeezy…

http://www.apneaboard.com/forums/Threa ... ew-dollars

Maybe not that easy, but it will work.

babydinosnoreless · Post by **babydinosnoreless** » Thu Sep 15, 2022 8:07 pm

Rubicon wrote: ↑
Thu Sep 15, 2022 12:59 pm

lynninnj wrote: ↑
Thu Sep 15, 2022 11:50 am

A man-o-meter?
Yeah.

That thing you (guys) were talking about in the other thread:

babydinosnoreless wrote: ↑
Fri Sep 09, 2022 10:02 am
I know for some reason you guys feel the need to whip out your measuring tapes ...

Sounds kinky.

Grumpy48 · Post by **Grumpy48** » Fri Sep 16, 2022 6:35 am

I bought a manometer from Amazon. I had other reasons to get one (pellet stove draft), but it works well for checking CPAP pressure.

https://www.amazon.com/gp/product/B0168 ... UTF8&psc=1

Had to cobble up fittings for the hose connection. Tried a range of several pressure settings on the CPAP's (DS2 and AS10) and the reads on the manometer matched very closely to what was set on the CPAP's.

Brad S · Post by **Brad S** » Fri Sep 16, 2022 7:43 am

babydinosnoreless wrote: ↑
Thu Sep 15, 2022 8:07 pm
I know for some reason you guys feel the need to whip out your measuring tapes ...

The struggle is real!

lynninnj · Post by **lynninnj** » Fri Sep 16, 2022 10:42 am

Brad S wrote: ↑
Fri Sep 16, 2022 7:43 am

babydinosnoreless wrote: ↑
Thu Sep 15, 2022 8:07 pm
I know for some reason you guys feel the need to whip out your measuring tapes ...
The struggle is real!

ROFLMAO

Maybe if I ask someone else on the thread who is courteous and helpful I will get a reply.

I am curious to know what one does with the information regarding the pressure testing? Isn't it all sort of about just making adjustments to see what works? Or is this more particular to those on a CPAP rather than an APAP?

Thanks for any helpful responses.

Iamstumped · Post by **Iamstumped** » Fri Sep 16, 2022 11:00 am

I think that it is to just make sure that your machine is putting out the correct pressure, that it should be putting out.

lynninnj · Post by **lynninnj** » Fri Sep 16, 2022 11:05 am

Iamstumped wrote: ↑
Fri Sep 16, 2022 11:00 am
I think that it is to just make sure that your machine is putting out the correct pressure, that it should be putting out.

Thanks for taking the time. I can certainly see why that is important for someone on a CPAP, for sure. But with something like i have, with the autoset and the APAP, I can't see the significance.

That's why I ask, so I can learn.

Brad S · Post by **Brad S** » Fri Sep 16, 2022 11:18 am

lynninnj wrote: ↑
Fri Sep 16, 2022 11:05 am
Thanks for taking the time. I can certainly see why that is important for someone on a CPAP, for sure. But with something like i have, with the autoset and the APAP, I can't see the significance.
That's why I ask, so I can learn.

It's crazy and frustrating that you have to qualify your question to get an appropriate response.
This Man-O-Meter thing is really interesting to me. I am really interested in the pressure of things- I am a guy

I have looked in the past for a way to measure the output of an oxygen concentrator. What I found was $1,500 or more. I am not that interested. But this might be a way to affordably figure this out.
I am with you though, the pressure of the CPAP might be nice to know, but like you say, if the machine is doing what it is supposed to, then the actual pressure measurement isn't really that important.

Help with testing pressure at home

Help with testing pressure at home

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