During pool opening season we encounter several common repairs and the spider gasket is at the top of that list. The spider gasket is the main diverter seal within your pool’s multipart valve. When you turn the handle on the valve you select filter, rinse, or backwash and the spider valve is responsible for making sure water is dispersed correctly. When your spider gasket is in need of replacement, you will often notice water leaking from undesired areas, such as the bottom of your sand filter. This repair is a simple and inexpensive that will save you a lot of frustration.