This video demonstrates how to change the sand in an in-ground pool filter. The video focuses on a Pentair Tagelus High Rate Sand Filter, but the process can be applied to other filters. This video covers steps such as removing the multiport valve, draining the sand, cleaning the lateral assembly, and refilling the tank with new sand.Due to a part breaking you will also see how to replace the multi port, sight glass, and pressure gauge. I figured why not put all new everything while I was in rep