The flex tubing is fine, but it is still easy for them to chew on, pvc
piping is better to use, you can get elbows and everything you need to
run the pipe right to the back of your puter, it's a bit more to buy but
it's more durable to ferrets...you wouldn't need to use the pvc glue
sense you can fit the pieces in the connectors tightly, and you won't
have to worry about your fuzzies chewing on it...
 
Billy...
[Posted in FML issue 4509]