Automatic Spider String Farm 1.8

This is a Spider Grinder using a mob crusher powered by a hopper timer. once the spiders spawn they fall down then are pushed by another water current into a small mob crusher where they are crushed and their drops then are collected by hoppers in the floor and lead to 2 small chests on both sides under the crusher. To the side of the observation opening there is a lever that will dispense lava held up by signs to help keep the amount of spiders down if needed.