oh... and just a suggestion, DO NOT attempt to use those panels before your party. If they are full of water, you have no idea what the water looks like inside the tubes and I would hate to mess up the pool right before your party.
I have heard that if you use a garden hose, you can create a solar heater on your deck or out in the lawn. Place all of the clean garden hose in the pool, you make a loop out of the middle of the hose out on the deck/grass in a sunny area (both ends stay in the pool). Lift one end of the hose out of the water and start a siphon using the pool water and have the water flow from the pool, into the hose in the sun, and have it go back into the pool. It can (may) pick up some heat out in the sunny area. A dark colored hose may work better.