BargainBinge:Spider, where do you get those water beads? That sounds like so much fun!!! How many packs to fill a kiddie pool?
Growing up I had a big trampoline. We'd put the sprinkler under it and it was so fun to bounce and have the streams of water coming from under fly up in the air! That was SO FUN.
Hydration is so important. Stay hydrated and nourished!
I found them at Wal-Mart in the crafts area (near the floral arranging stuff), but they're probably cheapest on Amazon. You can get a whole *pound* of them on there for around $8. I used 3 packets of the beads (around 3 oz) and it filled most of a 5 gallon bucket, and that was plenty for the bottom of our little wading pool.
Here's what they look like when hydrated.

This would also be the kids with their legs and feet stuck in the storage bin where the waterbeads were before I had the bright idea to pour them in the wading pool.