Mark Petersen of Live Well CPAP in Boise, Idaho, answers the question, "Why am I getting water in my tubing and how do I fix that?"
The reason is that your humidifier cannot keep up with the cool temperature of the room.
When this happens your machine will gurgle and clunk with those water droplets in the tube.
The way to fix that in the easiest and fastest way, you should set your climate control is set to AUTO and your tube temperature is set to AUTO.
If you set it to manual, you need to change settings-- either decrease humidity or increase the tube temperature or both.
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