Place 3.500 cups of water in your friends house

When away on April Fools' Day, his roommate thought it was the perfect time for a great prank. The roommate didn't want to perform an 'ordinary' joke, but a prank never to be forgotten.

3.530 plastic cups

He gave his entire house a makeover and the owner of the house doesn't know what he saw. His roommate had put more than 3,5 thousand cups of water in his house!