Here is the link to the Wlim bead filter - http://wlimproducts.com/bio-wave-filter.htm
I have no personally experience with them but people here have mentioned that they take much less water to back-flush and they do a better job of polishing the water.
Again, its a trade-off... those use a 1HP air pump which is huge! So.. waste some water... or use a giant air pump....
IMO wasted water just does my water changes for me when I clean the canister.
a 1 HP blower sounds like the equivalent of a leaf blower..