I use nose pillows. Never a problem. I'll check the water.

OK, some background, I am a man, 47, who has had his CPAP for about 4 years. I got it because of sleep apena. My hardware is a ResMed II series 7 CPAP with Nose Pillows. I change my filters monthly, but probably don't clean my unit as much as I should. I took to my CPAP right away no problems until ...

I fit that too. I use nose pillows. I find they work great until recently, but I think that is more affected by my recent surgery.