Sand particles start with rough edges, so when debris passes through the filter, some of it will be caught in the sand and eventually lose their rough edges and need to be replaced. Most sand filters can handle particle that measure 20 microns or larger, which is plenty of coverage if you otherwise keep your pool clean. After a while, though, the filter can become full.
Most professionals recommend replacing the sand in your filter every five years. Because of that length of time, you really want to make sure you buy high-quality sand, so your pool will stay cleaner for longer. This is especially true for above-ground pools.
Here are our top picks for the best pool filter sand.
FairmountSantrol AquaQuartz Pool Filter Sand
Best Overall
This sand is 100% natural and eco-friendly. That means it will not stain your pool and that you don’t have to worry about any chemicals in your waters. It also backwashes easily. That means you can backwash more often, which helps keep your maintenance costs down.
HTH Filter Sand Care
Best Multipurpose
This pool filter sand fits both in-ground and above-ground pools. It’s also nontoxic and straightforward to use. And it fits both commercial and residential pools. If you’re looking for a versatile, straightforward choice, this is the pool filter sand to get.
ZeoSand Alternative Filter Media
Best Alternative
Sometimes your best option is actually to not use sand at all. Alternative pool filter media might be unconventional, but the rewards are plenty. Zeosand has more surface area and is lighter than regular sand, so it is more effective in trapping finer particles and ammonium ions. It also only weighs half its volume, so 50 pounds of Zeosand is as effective as 100 pounds of regular sand.
Whether you have a sand filter for your above-ground pool or for an in-ground one, buying good sand is a smart investment. Considering you only need to replace it about every five years, you want to make sure your filter is doing its best. And remember, weekly backwashing can help maintain the quality of the filter and your pool.
In the meantime, check out our list of the best pool chlorine floaters for continuous cleaning.
