Yorkster,

We pulled up most of the carpet in the house on advice of doctor. Well, he actually recomended replacing the carpets and getting rid of the cats. Modified treatment plan is keep cats, yank carpet.

You just can't vacuum carpet well enough. We have had them all. We currently use a Fairfax. It's a canister that uses three filters and a bag. Best "sucker" ever made. The lights dim and the thing makes a noise like a jet. Yes, it makes our cats vanish like teenagers confronted with house work.