We combine the newest and best car wash technologies from the leading manufacturers to provide a fun, fast, premier car wash experience. - Join Hydro's Unlimited Wash Club. Wash your car up to one time each day for a low monthly rate. - Register your credit/debit information in the app. - Purchase memberships, wash books, single washes, and gift cards. - Redeem washes. - Build to your vehicle "herd" - 25% membership discount for additional vehicles in your household. - Partner with Blue Hippo on fundraising opportunities to support your group and local charitable organizations. - Manage your Hydro's Unlimited Wash Club membership and Blue Hippo App settings.