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slow sand filter design. as the title indicates the speed of filtration is changed in the slow sand filter however the biggest difference between slow and rapid sand filter is that the top layer of sand is biologically active as microbial communities are introduced to the system. the recommended and usual depth of the filter is 0.9 to 1.5
pool sand is a very effective filter but it's also a bit pricey. because play sand also known as sandbox sand is less expensive than pool sand pool owners are often tempted to try using it in the pool filter. play sand and pool sand are not the same however and are not interchangeable.
quikrete 50 lb. pool filter sand is a properly graded and dried sand. it is designed to be used in swimming pool filtration systems. this pool filter sand also features a tan color.
you want #20 silica sand sometimes called pool filter sand. if i remember correctly that is .45-.55 mm. commercial pool filters use gravel in the bottom and sand on top of that but it really doesn't make much difference in the smaller residential filters so residential filters normally use all pool sand.
sand filters are generally the most compact and affordable option to filter an in-ground or above ground pool. sand filters use specially designed pool filter sand that removes the dirt and debris as water pushes through the media. the cleaned water then flows back into the pool out through the bottom end of the filter.
the sand helps keep the swimming pool healthy and just like any type of swimming pool filter you have to change the sand. changing the sand at the start of every season is a great place to start.here are 4 different types of swimming pool filter sand; these brands are some of the best you can find.