Dunk Tank Construction Directions On How To Make A Dunk Tank?

Directions on How to make a dunk tank? - dunk tank construction

I wonder if there might be someone to receive instructions as to plunge a homemade one, our family has a pig roast every year for family and friends and work colleagues Hugh an event, and I had a water tank and sell tickets for family members to rent a dunk, but too expensive and heavier than those for pork inc VAT auction .... Thanks