

Suddenly my Airsense 11 has gotten much louder. Mostly I hear it when I exhale which is strange because that is when it is not blowing. High pitched whining sound. Fortunately I have an old Cpap I can use while I figure this out. If anyone has experienced this, please let me know.
m looking for a new tent. This is my old one.
I've had it for 6 years and it was a bit worn out. Plus, it was NOT at all waterproof. Rained on my last camp out and there may as well not even had been a tent over me. (I also had the rainfly)
What I am looking for is
Large enough for a big boy cot. I use one 86" x 45" (Grand Teton XXL)
Waterproof
Able to stand up in it.
Has a floor. (I camp in rattlesnake and scorpion country and don't need guests)
Would be nice to be able to share the space in a pinch. If someone else at an even or gathering gets rained out or has no shelter, I can help them out.
What I was thinking about is this with the appropriate awning. I imagine I would have to silicone spray the heck out of it. (please give opinions)