Sand rakes used to be sold at Ace Hardware and Lowe's. I'd call those places (if they're in your area) and ask customer service.
Too, I have the HTH Pool Sand and it clears quite quickly, but I always turn off the filters to be on the caution side when doing water changes and stirring the sand (I stir every 2 weeks).
Sand rake website (I assume you can use one of the ones listed as I couldn't find one for Lowe's and Ace):
Here is a How-To video on the raking, too. It's quite informative:
Whoa! Those are some big grading rakes! I use this thing, it's more aquarium sized: