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An above-ground pool offers a lot of relief and fun during the summer season. However, water must be free from harmful algae and bacteria. If you are looking for an above-ground water filter there are three different types out there. It includes sand, cartridge, and diatomaceous earth that keeps the water clean. Some of the best above-ground filters can treat 3,000 gallons of water per hour. The best sand filter for 18’ above ground pool is capable of cleaning up to 24,000 gallons. You need to consider all the important features before choosing the perfect sand filter.

What to Consider Before Choosing Best Sand Filter for 18' Above Ground Pool?

Sand filters are among the most popular choices among pool owners. They work well and are a cost-effective product. The sand filter system features large tanks and can hold a lot of sand. As the water will pass through it can remove all the contaminants. Some of them are as small as 20 microns and are a better option than other filters. You can replace the sand after 5 years and it continues to work efficiently to keep the water clean. If your filter continues to work properly it can maintain the freshness of pool water.

Sand filters

1. Pump compatibility

If you want the sand filter to work perfectly with an above-ground pool, the best sand filter for 18’ above ground pool must remain compatible with the pump. There is no doubt it can ensure the right amount of pressure and flow to send water through the filter. Make sure that the filter is not too large or small for the pump. The pump cannot produce enough pressure and push water outside the filter. When the filter is too small it can overload the filter. It can even hurt the performance or may damage it right away.

If the pump is in good condition it can filter a large amount of water within an hour. Some pool pumps have a higher range of flow rate that is connected to the horsepower of the motor. Make sure that the pump and filter don’t work for more than 8 hours.

It becomes easy to avoid giving a lot of strain on the pump and filter. The pumps with 1 horsepower can produce a flow rate of 3,000 GPH. While a 1.5 horsepower pump features a flow rate of 4,000 gallons per hour. If you choose a 1.5 horsepower pump it can be suitable for an above-ground pool that has around 60,000 gallons.

2. Easy to use

The best sand filter for 18’ above ground pool must be easy to use. All you need is to adjust your filter to different settings and get the best of everything. It will be easy to backwash, rinse and winterize the filter effectively. You can add sand or D.E to the system without taking a lot of gaps.

The cartridge-based filters are very easy to use. They can fit in well with an above-ground pool. When the filter is full you can turn off the pump. You have to open the top of the filter and replace the cartridge with a new one. When the pool water is clean you can enjoy swimming every season.

3. Installation

The installation of the best sand filter for 18’ above ground pool is easier to handle as compared to an in-ground pool. There are plenty of models that feature filters with pumps. You don’t need to work harder and make a connection between two pieces.

The process of installation is easy and it connects the tubing right from the pump to the pool. It can draw water into the filter. With the perfect outflow, it can send water back into the swimming pool. If we talk about the inflow connection it is around the bottom of the pool. While the outflow is near the surface of the pool water. Some sand filters usually take an hour to set up. It depends on what you find suitable for your above-ground pool.

4. Cleaner type

The sand pool filter systems work efficiently to remove contaminants and impurities from the water. However, they may not remove the muck that sticks around the floors or walls. There are three different types of pool cleaners that include robotic, pressure, and suction side.

The suction-side pool cleaners are more suitable for small pools. While the robotic and pressure side cleaners are ideal for large above-ground pools. They feature large pumps and filters that are not costly either. These pool filters are suitable for 10,000 gallons and others have 57,000 gallons.

Sand filters

Features of Best Sand Filter for 18' Above Ground Pool

If you are looking for a sand filter for an 18’ above-ground pool make sure it is easy to maintain. There are many sand filters available at Poolking and you can choose your preferred product. The right combination of pump and filter uses sand to filter the small particles. In this situation, the water will become clean and the basket will remove the large debris. If your above-ground pool holds up to 16,800 gallons you can integrate a 0.3 horsepower pump.

Some of the most prominent operating functions include backwash, rinse, drain, filter, and recirculate. You can easily close the system and make it work perfectly for the pool. It is easy to maintain the quality of your swimming pool and keep the pump stronger and better. The best thing is that you don’t need to turn it off manually. If the filter tank is 12 inches it can hold up to 50 pounds of sand. This can last for about 5 years and you don’t need to change the sand often.

The pressure gauge can keep the pressure in a safe range. There is a strainer basket that will keep the debris away. You can enjoy swimming in clean and hygienic water. Whether your pool is small or large it will not require a big amount of investment either.


If you are looking for the best sand filter for 18' above ground pool, look no further. Poolking offers a wide range of high-quality products at affordable rates. You can enjoy swimming in clean water throughout all the seasons.

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