tube temp=86-humidity=0-rainout insues

[zonker]

hello all. let me repeat what the post title says for those who don't pay attention to titles. I have my machine set on a manual heat setting of 86. I've set the humidity at 0. yet I still get rain out.

i've been told by pugsy that what i'm describing is impossible. yet there it is. it was happening infrequently over the last few years. it seemed to me to be connected with the changing of the seasons and would settle down after a few weeks. however, this has been going on now for two months.

I have two machines. this happens on either of them. I'm setup now so that the spare machine is ready and I can put the hose on it to dry it out. meanwhile, I use another hose with the primary machine.

this can go on all night. sometimes the rainout will happen an hour after lights out. other times, it won't occur until 3-4 hours after lights out. mostly, i'm up changing the hose out 3-4 times per "sleep" session.

the short hose (I use a P10 nasal mask)is covered on both hoses.one of my p10's has a barrel cozy which does nothing to prevent rainout.

I wear a firm foam cervical collar. I cover my mouth with folded cloth and headbands to hold it in place. I have tried using dental adhesive to keep my lips closed. and most recently, i'm using a mouth guard. that last has actually caused my ahi to go down. not that this makes a blind bit of difference. if I keep getting awakened every few hours, a low ahi isn't exactly helping me.

I don't know what to do about this. was hoping that the forum can make some suggestions.

tia

[Pugsy]

When you have the humidity set to 0 do you still have water in the chamber so that you end up doing the "pass over humidity" thing? If there is water in the chamber....are you filling it to max water line or less?

Still using the P10??

Glad to see you are still alive and kicking....people were worried about you.

I gotta think about this for a bit....I don't doubt you but it doesn't compute but then we both know you are special.

I use a setting of 8 for humidity and my hose temp is 83 degrees and I don't get rain out and my house air conditioner is set to 72 degrees. I also don't have the tank go dry either.

[ozij]

Hi Zonker,
We were wondering about you - glad to see you posting again!

Are you putting water in the humidifier?
Ever tried sleeping without water?
I know your pressure is very high. Any chance you're putting in too much water, and it's water, and not vapor entering your hose?

Is your room temperature very low?

When you say " have my machine set on a manual heat setting of 86" do you mean the tube temp?

Have you ever tried hose temp and humidifier both on Auto?

[zonker]

When you have the humidity set to 0 do you still have water in the chamber so that you end up doing the "pass over humidity" thing? If there is water in the chamber....are you filling it to max water line or less?

Still using the P10??

me-
"the short hose (I use a P10 nasal mask)is covered on both hoses.one of my p10's has a barrel cozy which does nothing to prevent rainout."

been so long, I forgot how to quote myself.

no water in the tank. meant to mention that originally, but forgot.

[zonker]

Are you putting water in the humidifier?

no

Is your room temperature very low?

another thing i forgot to mention! room temp varies from 64F to 68F. it's been a fluctuating summer and I sleep with the window open in summer.

When you say " have my machine set on a manual heat setting of 86" do you mean the tube temp?
Have you ever tried hose temp and humidifier both on Auto?

yes, sorry I meant tube temp. I THINK i've tried auto but am uncertain. will try tonight.

[ozij]

But don't try the humidifier on Auto without water!

[zonker]

But don't try the humidifier on Auto without water!

just by the way, what would happen with no water?

[Pugsy]

I THINK i've tried auto but am uncertain.

You have tried it (Auto humidity and auto heated hose) and no joy........and like Ozij says if you do try auto again then you shouldn't do it without water in the chamber.

Let me do some thinking on your problem and see if I can come up with any new ideas.
We are dealing with Physics in action here and I don't know what else we can do to fool Mother Nature/Physics.

[zonker]

I THINK i've tried auto but am uncertain.

You have tried it (Auto humidity and auto heated hose) and no joy........and like Ozij says if you do try auto again then you shouldn't do it without water in the chamber.

i'm so messed up from restorative sleep, I wasn't sure. i'll try it tonight unless you or someone comes up with something "better".

[Pugsy]

I THINK i've tried auto but am uncertain.

You have tried it (Auto humidity and auto heated hose) and no joy........and like Ozij says if you do try auto again then you shouldn't do it without water in the chamber.

i'm so messed up from restorative sleep, I wasn't sure. i'll try it tonight unless you or someone comes up with something "better".

I have my doubts as to whether "auto" will do what you want but might be worth trying again.
Your ambient room temps aren't helping things and I am not going to tell you to warm up your bedroom.

[zonker]

Your ambient room temps aren't helping things and I am not going to tell you to warm up your bedroom.

BUT you can certainly suggest it. that temp, I feel, helps me sleep. I like to burrow under covers. however, I can always raise the temp and use less of the covers.

everybody! please keep ideas coming, even if it's just "guesswork" or you think it odd in any way.

it can't be worse than what I'm going through with these wakeups due to moisture up my nose.

[Pugsy]

You know with no water in the chamber that moisture has to come from somewhere and the only other source left is YOU.
Moisture in your own exhaled breath that condenses at the mask level and apparently condenses enough to also get the inside of the hose wet. That's a lot of moisture there.

And I thoroughly understand your desire to snuggle under the covers. I do it myself but my anti condensation tricks work for the most part. My biggest fault right now is filling the water chamber a little too full and the air going over the water gets blown up into the hose and eventually to my mask. Annoying as hell.

I am going to reach out to someone I know and see if he has any new ideas on how to fool Mother Nature Physics.

[robysue1]

hello all. let me repeat what the post title says for those who don't pay attention to titles. I have my machine set on a manual heat setting of 86. I've set the humidity at 0. yet I still get rain out.

Having read through the thread, I have to offer this idea: You must be experiencing condensation from the humidity in your own exhalations into the mask, as Pugsy suggested a few posts up.

That kind of rainout can be very difficult to deal with.

You also say you're using a P10 with a hose cozy on the short hose and a pillow cozy on the barrel as well as the heated hose set to 86. And you say that your bedroom is cold:

Is your room temperature very low?

another thing i forgot to mention! room temp varies from 64F to 68F. it's been a fluctuating summer and I sleep with the window open in summer.

Do you run the hose under your covers? Or is it and the mask outside the covers?

Because the only way I can think of to address the rainout under these circumstances is to keep the air inside the pillows barrel warm enough to not trigger the condensation.

For what it is worth, I do sleep with my head under the covers a lot, particularly when my bedroom is cold. And I run the hose under the covers as well. This seems to prevent a significant amount of rainout that you would expect that I'd get given that most of the time I have the humidifier maxed out at 8, the hose temp is usually set no higher than 65-68, and our room can easily go down to 60 at night in the winter time. (Like you, we tend to sleep with an open window in the summer, and our bedroom can be anywhere between 60 and 75 degrees depending on the daytime high, the night time low and the time of night.

[Dog Slobber]

I don't know enough about complicated rain-out issues to help. But, I just wanted to re-enforce, that you're missed when you're not posting.

Glad to see you are still alive and kicking....people were worried about you.

We were wondering about you - glad to see you posting again!

[zonker]

Do you run the hose under your covers? Or is it and the mask outside the covers?

Because the only way I can think of to address the rainout under these circumstances is to keep the air inside the pillows barrel warm enough to not trigger the condensation.

For what it is worth, I do sleep with my head under the covers a lot, particularly when my bedroom is cold.

<strokes chin thoughtfully> I hadn't thought of covers over the head. I have done the hose under the covers, but left P10 OUT of the covers. I think I'll try that before I go messing with the room temp.

will report back tomorrow.

thanks!