OK this is going on the list of things to make. It basically extends the skimmer to suck up water toward the bottom of the pool to get out the guck in the water. I have made a few gizmos for my pool, but I have problems sometimes when opening my pool at its green and this could help it out. But…I may change it so the pipe goes up and over the skimmer instead of thru the skimmer hole.
http://www.instructables.com/id/Swimming-Pool-Skimmer-Extension/