Hi Didier,
"Suction only" means making use of canister vacuum with a straight suction rug tool or an upright vacuum with its brush roll turned off. I have only heard of this recommendation for cleaning very old museum quality and/or expensive "oriental" carpets. If your new carpeting is standard broadloom installed wall-to-wall its care is best served by either an upright or canister vacuum with a revolving brush.
Venson and all,
Thanks for your reply.
My wife and I found the following comments on some sites like Amazon ->
http://tinyurl.com/5dhdah
http://www.my3cents.com/showReview.cgi?id=41167
Hard to say, but after reading this I thought I would ask. Our carpet is not exactly berber but definitely wall-to-wall loop carpet
in multiple rooms of our 2nd story.
Thanks - Didier.
Thanks again for all these info.