The sand will go inside the filter tank. It usually goes in through the top of the tank; often there is a valve or dome on the top of the tank that would be removed for the sand to be added through. Others will have the top of the tank taken off.
Sand pool filters are available in a variety of sizes, for both above-ground and inground pools. The amount to put in can range from 50 lbs to about 300 lbs for residential use depending on the size of the filter. The correct amount to use can usually be found right on the label on the tank (assuming it’s still readable). If this is unreadable, if you at least know the make and model of the tank, I should be able tell you how much sand to put in. (Normally the old sand would be removed first; unfortunately, this can be more difficult.)
Backwashing refers to reversing the flow of water through the filter tank to remove dirt and debris accumulated in the tank. You don’t want to do this too often: a sand filter actually works better when it gets a little dirty. If you know the specifics on the filter, feel free to send them to me through the group (see below)
- How a Swimming Pool Sand Filter Works (poolfiltration.net)
- Best Above Ground Swimming Pool Filters-A Look At 2 Money-Saving Above Ground Pool Filters (poolfiltration.net)
- How to Clean a Swimming Pool Sand Filter (poolfiltration.net)
- Swimming Pool Sand Filter Specification (poolfiltration.net)
- Pool Sand Filters – Keep Your Swimming Pool Water Crystal Clean and Clear (poolfiltration.net)
- How to Select the Right Pool Filters (vacuumpoolcleaner.com)
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