# What Size Sand Filter For Above Ground Pool?

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The level of performance of an above ground pool delivery largely depends on how efficiently you maintain it.

In this case, a sand filter is a handy appliance to complete the job much more effectively with the least effort.

However, you must know **what size sand filter is for the above ground pool** as it varies.

In this article, we have revealed the process of measuring the right size sand filter for a certain size pool along with all the considerations and standard recommendations.

## What Size Sand Filter For Above Ground Pool?

**A common rule is that you’ll require at least a 1 square foot filtered area for 10,000 gallons of pool capacity.**

The size of the sand filter depends on the size and shape of the above ground pool itself.

**Here, we have given a chart for your convenience, **

Pool volume | Filtered Area | Sand Filter size |
---|---|---|

15500 gallons | 1.5 square feet | 1.6 square feet |

30000 gallons | 3.0 square feet | 3.1 square feet |

35000 gallons | 3.5 square feet | 3.6 square feet |

40000 gallons | 4.0 square feet | 4.1 square feet |

45000 gallons | 4.5 square feet | 4.6 square feet |

## Some Factors To Choose The Right Size Sand Filter For Above Ground Pool

### Determine Your Pool Volume

To determine the size of the filter for your pool, you need to know the volume of water it holds.

If you’re unsure of the volume, you can calculate it using simple equations. Most pools are round, rectangular, kidney-shaped, or oval.

Start by measuring the deepest and shallowest ends of the pool to determine the average depth, since most pool bottoms are uneven.

Once you have the volume, you can choose a filter size that will properly handle that volume.

#### For Rectangular Pools:

Take accurate measurements of the pool’s length and width. After that, determine the volume of the pool by multiplying the figures together.

Pool volume V = L x W x D

If your pool is rectangular in shape, you will need to divide the shape in half in order to calculate each volume separately.

After that, simply add up all of the values to get the total volume.

#### For Oval Swimming Pools:

Calculate the surface area of the pool by first measuring its radius, which will give you its area.

In order to determine the radius, one must first measure the diameter of the pool while passing through the middle of the pool.

Divide that number by 2, because r equals diameter divided by 2.

Determine the surface area by multiplying the radius by the formula **A = r2**, which you can find online.

Where **A **represents the pool’s surface area, equals 3.14, and r indicates the pool’s radius.

Multiplying the pool’s surface area by its average depth (D) yields the formula for calculating the volume of the water in the facility.

**Volume = A x D.**

#### For Oval Pools:

Take a measurement of the diameter at its shortest point as well as its longest point. After that, multiply the result by the average water depth.

Volume = Shortest Diameter x Longest Diameter x Average Depth

#### For Kidney Pools

Take the shortest width measurement and the longest width measurement, then add those two up. Take a length measurement of the pool.

After that, determine the volume by multiplying the figures with the average depth of the object.

The volume of the pool can be calculated as follows: Volume = (shortest width x longest width) x Average Depth x Length of Pool

After determining the size of the pool in cubic feet, the next step is to convert that number to gallons.

This is essential given that the gallon unit is the standard measurement employed by the majority of manufacturers.

Simply multiplying the volume you determined earlier by 7.48 will get you the correct answer for how many gallons are in a cubic foot.

If you are already familiar with the size of your pool, you won’t have to worry about performing these calculations.

### Find Out How Much Water Is Flowing!

It is important to note that the majority of pool pump capacities are measured in GPM (gallon per minute).

Because we have now expressed the volume of the pool in terms of gallons, calculating the GPM won’t be as challenging as it was before.

As was mentioned earlier, the typical amount of time required for a full filter cycle is between six and eight hours.

The average time spent in a residential pool is 8. Therefore, we will be on the road for eight hours.

Converting the hours to minutes will allow us to get a better idea of what the actual value of GPM is.

To convert from hours to minutes, we multiply 8 by 60. This gives us the actual time in minutes.

**Time = 8 x 60 = 480 minutes.**

Divide the total volume of your pool by 480 to get the value for the pump’s capacity.

For instance, if the volume of your pool is 10,000 gallons, the required pump size is 10000 divided by 480, which equals 21 gallons per minute (GPM).

If you intend to use the pool for commercial purposes, you should change the calculation so that it uses 6 hours rather than 8 hours.

### Determine The Number Of Gallons That Will Be Filtered In The Next Eight Hours

Your pool water can be cleaned in approximately 8 hours by a pool filter that is in good condition; therefore, you will use this figure to figure out the next step in the process.

First, find out how many gallons are in your pool by dividing that number by eight, and then take that number and divide it by sixty.

Figure 60 represents the number of gallons per minute that need to be pumped in order to complete the task within the allotted time frame of 8 hours.

### Set up the additional filter Accessories

The filter needs to be put in place at this point. You should make use of a stable base because this will lessen the amount of vibration.

Make sure that the electrical system is kept under a cover that is impermeable to water.

You will additionally be responsible for the installation of a pressure gauge, a sight glass pipe, an air relief valve, and a backwash hose.

## Tips To Clean Sand Filter

Following are some effective yet simple tips to keep the sand filter in optimum condition to get maximum performance:

### Preparing To Backwash

Firstly check the pressure gauge of your sand filter. Power off the pump and if wish to, you can turn off the circuit breaker.

Change the setting on the pool filter valve and place the waste hose.

### Backwash The Filter

Keep the pumps running for at least 2 minutes at this time, check the sight glass, and turn back the pump off.

### Perform A Final Rinse

Apply the rinse setting and get back to the filter setting. Then check the gauge.

### Installing Filter And Other Accessories

To install and keep the filter stable, use a solid base. More importantly, store all the electrical systems under a watertight cover.

You’ll require a backwash hose, sight glass pipe, air relief valve, and pressure gauge.

## FAQs about **what size sand filter for an above-ground pool**

### Can You Use A Too Big Sand Filter For An Above Ground Pool?

You shouldn’t. The reason is that filters don’t have any exact minimum flow rate.

So the tank will take much time to fill up.

### How Often do Its Need To Change The Sand In The Sand Filter?

You will need to change and replace sand in your sand filter eventually even if you maintain and backwash regularly.

Luckily, changing sand 5 to 7 times per year is good enough for a sand filter.

### What Is The Best Sand Filter For Above-Ground Pools?

Overall, Intex Krystal Clear Sand Filter is the best sand filter for above-ground pools.

It has an appropriate flow rate for the small above ground pool while handling the larger-size pool safely.

This sand filter also keeps the water sparkling clean.

### How Much Does Sand For A Pool’s Filter Cost?

Most home improvement and pool stores sell pool filter sand, which costs between $25 and $35 for a 50-pound bag on average.

### How Do I Choose A Pool Sand Filter?

The filter’s flow rate must be at least as high as your pump’s, or at least the same.

When it comes to pool filters, it’s best to err on the side of bigger so that the filter can handle the power of your pump.

A good rule of thumb is to choose a filter that has at least 1 square foot of surface area for every 10,000 gallons of pool capacity.

## Final words

Choosing the right-sized sand filter helps improve your above-ground pool’s health and lifespan. It saves money and energy over time.

When determining what size sand filter for above ground pool, it must need to consider the size and shape of the pool.

Now you have found the answer to the question, “**what size sand filter for an above-ground pool**?

“Consider the size and shape of the pool when choosing the correct sand filter for your above-ground pool.”

The pump size and flow rate are also worth consideration. Going through these steps and picking the right size sand filter will let you enjoy the safe and sparkling pool.