Half the fun of draining is the equipment.

2 medium ropes (8'-15')
3 short ropes (3'-5')
1 1000' thin rope
1 100' tape measure
5 inner tubes
7 two-person boats (1 of which is off active rotation due to leaks)
4 paddles
1 water proof 6-volt flashlight
2 car batteries with modular plugs
1 car battery charger
3 extension cords with modular plugs
4 car headlights with 15' cords and modular plugs
1 electric air pump with modular plug
2 hand pumps
3 foot pumps
4 bags for carrying supplies
1 plastic bag filled with maps
2 patching kits
3 pairs cloth gloves
1 pair waterproof gloves
4 pairs of sandals (2 size 9, 1 size 11, 1 size 12)
2 rolls duct tape
1 X-Acto knife
1 automotive flare (courtesy of EP)
1 roll red tape
4 dry erase markers
2 dry erase boards (in the garage; used for mapping/planning)
1 box of flashlights (off active rotation)
1 box of batteries (off active rotation)
3 drinking water jugs
2 backpacks
1 block and tackle
1 lever winch
3 10' chains
1 sunken boat (made from an industrial cabinet)
3 8' ladders
1 video camera (and tapes, cables, etc.)
1 set of welding equipment
15 D-size flashlights (the flimsy, plastic $1 kind of flashlight)
Hundreds of D-size batteries