Hysteria891,482,451 Locked 25 Nov 2015 25 Nov 2015
Load up level 91. Have your phone on landscape view (gravity arrows pointing left) and delete all the red bricks on the right side of the level. You can hold your finger down and swipe across the bricks to break them quickly.
Then manually (touching the 4 arrows) keep switching the gravity to the right, to the left, to the right etc in quick succession for 66 moves, till the level ends. It should take about 1.5 minutes per run and you will have around 15,000 blocks of water moved in one go.
Assuming you have already got 100% on every level, you can get this in 5-6 runs - around 10 minutes of grinding! :)