Maggie's compressor is not working as well , AGAIN. First we had the Pari Proneb, died after 6 months of use. They upgraded us to the Proneb Ultra, which we've had maybe a year? It's definately not working as well. So looks like I'll be sending it back to the company. You'ld think they'ld make a heavy duty compressor for CF'ers considering how much use it gets.