Everyone can be an all-star pitcher with our Dunk Tank! For a guaranteed good time at birthday parties, school functions, festivals, and more. We have awesome dunk tanks that make quite the splash at your party! Can be set up in 30 mins. You need to have a water source- we do not provide water. It takes 250 gallons of water to fill up the tank. Rock Rental charges 5% for credit card payments, no additional charge if paid by cash or check. Rock Rental's delivery fee is based on $1.00 per mile round trip without a trailer and the travel fee for 1 vehicle towing a trailer is $1.25 per mile one round trip from Alpine with a zip code of 91901.