hose diameter query

Ms Piggy · Post by **Ms Piggy** » Sat Oct 14, 2006 9:57 am

Will someone please tell me if it's ok to use a hose with a slightly less diameter than the original supplied with the machine?

eg. Respironics Remstar original hose is slightly larger than the one on the PB420 range, but the ends will fit on either. thanks

DME Daddy · Post by **DME Daddy** » Sat Oct 14, 2006 10:18 am

Hi Ms Piggy,

I am all but certain that you are mistaken or somehow have received a non standard hose. The original hoses on these machine have the exact same internal dimensions.

If the diameter of a 6 foot hose was much smaller than standard, yes it could cause a pressure drop, restrict flow response, and affect an auto cpaps titratrating performance.

ozij · Post by **ozij** » Sat Oct 14, 2006 11:51 am

Ms Piggy wrote:Will someone please tell me if it's ok to use a hose with a slightly less diameter than the original supplied with the machine?

eg. Respironics Remstar original hose is slightly larger than the one on the PB420 range, but the ends will fit on either. thanks

Which ends will fit on what?

If you are considering the use of a Respironics hose on a 420 range machine, than the answer is an emphatic DON'T.

It has nothing to do with the diameter - the 420 range uses a additional, very narrow hose (diameter of a straw) the connects to the machine on one side and dangles out of the other end of the grey hose. This is necessary for pressure sensing - a 420 without this pressure gauging hose will simply not give you any pressure.

At the risk of being repetitive: You must not use a Respironics hose on a Puritan Bennett machine, and this has nothing to do with its diameter.

Conversly, a PB hose on a Respironics machine will have you losing pressure through the sensor hose, unless you plug the sensor hose up with those little black plug thingies.
O.

bbeck4x4 · Post by **bbeck4x4** » Sat Oct 14, 2006 11:53 am

you gotta define slightly, IHMO as much as within 1/8 inch these things are pretty standard.
I would use it and see how you feel, hoses are not cheep, and if it fits I would use it.

there is a reason pressures are adjustable. different masks, hoses, etc, etc.

Ms Piggy · Post by **Ms Piggy** » Sat Oct 14, 2006 12:31 pm

thanks guys for your fast come back with answers to what turns out to be a silly question.
The ends on the new, narrower looking, hose looked, and actually measured a bit larger than my old resmed issue hose which then, aided by my faulty memory, led me to think I had received a narrower hose. I have just peeled back the covering on my old hose and find to my amazement that it is NOT any larger.

I did, however, realize that the actual PB hoses are not interchangable due to a different measuring system for pressure, as shown on the pic., but it's good to mention it - just in case. In future I'll try not to post early a.m. or late p.m. in the hope that it will help! cheers,

ozij · Post by **ozij** » Sat Oct 14, 2006 12:50 pm

Yes, I was thinking of other, potential readers too...
O.

rested gal · Post by **rested gal** » Sat Oct 14, 2006 12:55 pm

Ms Piggy, it wasn't a silly question at all. That's how the hose appeared to you, and you were right to ask about it if you had any doubts.

Besides, your question led to ozij's excellent reply. ozij's "right on target" comments might help others from making a mistake about what hose they use with their 420E.

There's never a time not to post, if a person has a question!

ozij · Post by **ozij** » Sat Oct 14, 2006 2:12 pm

rested gal wrote:Ms Piggy, it wasn't a silly question at all. That's how the hose appeared to you, and you were right to ask about it if you had any doubts.

Ah, Rested Gal, I wish I had said that as clearly...I just meant it.

rested gal wrote:There's never a time not to post, if a person has a question!

I was going to suggest that as a forum motto, and then thought I might want to adopt it for myself...

O.

Ms Piggy · Post by **Ms Piggy** » Sat Oct 14, 2006 3:05 pm

well thanks everyone, I felt bad wasting everyones time.

snoregirl · Post by **snoregirl** » Sat Oct 14, 2006 3:24 pm

You didn't waste my time, I have never seen a picture of that hose with the pressure sensing thing hanging out!

DME Daddy · Post by **DME Daddy** » Sat Oct 14, 2006 7:23 pm

Let us clear one thing up.

420g and the very newest version of the 420s that was just released use a standard cpap hose.

The older 420 s and the 420e use the hose with the pressure line sensor pictured above.

birdshell · Post by **birdshell** » Sat Oct 14, 2006 7:42 pm

Ms Piggy wrote:well thanks everyone, I felt bad wasting everyones time.

RE: Wasting time

PUHLEASE! Minute questions are always welcome, and one never knows when one might see a hose with a thingie that we have never seen before!!

Just check out some of the postings on AHI readings and software. At least all of us understood the hose diameter question!

So, have confidence that any questions you might think to ask will be welcomed here. Besides, it keeps Rested Gal on her toes looking for the opportunity to post links (which she taught to me, thank you again Laura) just in case one might be needed.

_________________

CPAPopedia Keywords Contained In This Post (Click For Definition): hose, AHI

Ms Piggy · Post by **Ms Piggy** » Sat Oct 14, 2006 8:45 pm

SO, DME DADDY, just to make sure that I am reading you right, the only machine in the newest out PB 420 range to have the extra little hose inside, as in the picture posted in this thread, are the PB420E's, yes? Interesting, I wonder why they didn't just drop the idea of measuring pressure at the mask altogether. thanks for the info.

Looking at the way the 420E's inside tube is done it looks as if it would be easy to adapt a regular hose yourself, ie thread a narrow piece of tube through and make a hole in the rubber hose end, unless of course there is something else there that I am not aware of.

rested gal · Post by **rested gal** » Sat Oct 14, 2006 9:52 pm

Ms Piggy wrote:Looking at the way the 420E's inside tube is done it looks as if it would be easy to adapt a regular hose yourself, ie thread a narrow piece of tube through and make a hole in the rubber hose end, unless of course there is something else there that I am not aware of.

Yes, that will work fine.

DME Daddy wrote:the very newest version of the 420s that was just released use a standard cpap hose.

Cool. I had heard that PB was going to stop using a separate sensor line but didn't know when. So, they have stopped using the extra sensor tube with the new 420S, you say. Any idea when there will be a new release of the 420E that won't need the sensor tube? Thanks for the info!

Ms Piggy · Post by **Ms Piggy** » Sun Oct 15, 2006 2:33 pm

thanks for info. if I had known they were going to change the 420E to eliminate the little tube I mave waited. altho' looking at my figures it's maybe as well I didn't. Had an awful night last night, hope for better things tonight with the new input. Will reply to other thread later, appreciate all the info. very much.

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