Chris,
On the first pump I did, I used one of those siphon blasters that draws sand out of a bucket. Never again, it took countless hours. I started using the play sand and the blaster kept clogging because the sand had tiny pebbles in it. After finding some sandblast sand, I think I used about 5 bags and that was after I captured it on a blue tarp and reused it. It was very messy and a huge waste of time and I will never go that route again.
Steve
[This message has been edited by S Hardy (edited 01-27-2006).]