I like that idea. It would be nice to have something you can pull out on the driveway to keep the rugs off the concrete and let the dirty water run away freely. For some guys who do very little rug washing, but want to be a little more thorough than just wanding it, it may be a great option. The pressure washing thing really worked well, it would have worked way better on one of those grids.
Some guys were wondering how I got $1,100 for cleaning a 6'x8' rug... What I meant was that she paid $1,100 for the rug when she purchased it... if I got that kind of cash, i'd build a rug shop asap. I got paid $230, but that was for 2 rugs and they had some dog urine issues... that's why I had thought pressure washing would be a quick and easy way to flush them out... and it was.