Before beginning your online shopping for a replacement pool or spa filter you should take the time to find out as much information as you can about your existing filter. Note down the manufacturer, model, part number, and even dimensions of your existing filter element that you plan to replace. Just about all of the major pool and spa filter manufacturers have websites where they provide product schematic diagrams which you can use to determine the exact part number of the replacement pool filter you need.

I’m not quite sure what environmental reasons create the perfect environment for algae. But when this situation happens, it is very difficult to control it with the typical methods.