I've had two
Power Survivor 80's over the last 20 years, but would think twice about
buying another unit from
Katadyn. When the Swiss took over PUR, the spare
parts pricing went through the roof.
For example, when the bearings in the drive got wet and failed, their response was 'you are not supposed to be able to take it apart--buy a new drive assembly for 2000 euro'. Finally found a new bearing online for $20. A new piston rod for the
pump (simple SS rod about the size of a little finger--over 100 euro.