How long does it take to fill up a pool? [Complete Guide]

How long does it take to fill up a pool?

You are stumped as to how long does it take to fill up a pool that is a vast void. We tell you that you have two choices: hire a water truck or fill the pool yourself with a hose.

Most people go straight to the hose, which is a workable choice if you are patient, have many hoses, and aren’t utilizing well water. The average pool can take anywhere from 12 to 24 hours to fill, assuming you have a few hoses running.

How Long Does It Take to Fill Up a Pool?

How Long Does It Take to Fill Up a Pool

It’s crucial to know how long it takes to fill a pool. Is it possible to throw in a hose and leave it running overnight, or would it overflow? It takes a long time to fill a swimming pool for the first time or after a drain.

If you have a small pool with a capacity of 5,000 gallons or less, you may fill it in one day. Others who are filling a much larger pool may find that their pool’s water level is not reachable for several days.

Let’s go a little more detailed now on how long does it takes to fill up a pool. This article will explain how to calculate a more precise fill time for your private pool. We’ll also discuss the exact cost and factors on which pool fill time depends.

Factors On Which Pool Fill Time Depends

The length of time it takes to fill is affected by several factors, such as

– Flow rate of the water

– The size of the pool

1- Flow rate of the water

The gallons per minute (GPM) measure how many gallons of water could theoretically come out of your kitchen faucet or bathtub per minute. A meter is the best technique to decide the flow rate of your fill water.

The meter will fluctuate depending on what you use to fill the pool.

2. The size of the pool

There are a variety of pool sizes available on the market. The following are the standard dimensions available on the market:

  • 6×3-meter pools (also 6×2 and 6×4-meter pools), i.e., an area of 18m²
  • 7×3-meter pools (also 7×4 and 7×5-meter pools), i.e., an area of 21m²
  • 8×4-meter pools (also 8×3 and 8×5-meter pools), i.e., an area of 32m²
  • 9×4-meter pools (also 9×3 and 9×5-meter pools), i.e., an area of 36m²
  • 10×4-meter pools (also 10×5 and 10×6-meter pools), i.e., an area of 40m²

Ways To Fill Up a Pool with Water

While having water delivered to your home by truck is possible, it is not the only way to fill your pool. Consider pool water supply more of an idea than a precise service. It is just another way of saying that you’re transporting water to your collection by land, air, or sea.

The following are the most prevalent choices:

1- Water from the city

2- Water from a well

3- A delivery service for pool water

Each choice has advantages and disadvantages.

1- Water from The City

Connect one end of your garden hose to your outdoor faucet and the other to the pool, and you are done! You are on your way to a fantastic summer. Although this way of filling your pool is one of the simplest, it might be costly depending on where you live.

Droughts, restricted water sources, and natural catastrophes can increase the cost of filling your pool, especially if your area’s need for potable water has resulted in water rationing.

Your expenditures may vary based on how your supplier calculates your local water rates. If there is a drought or other extraordinary circumstances, you may be charged an excess usage fee.

2- Water from A Well

Why spend money on pool water when you can obtain it for free from Mother Nature? If you have a well large enough to fill your pool, you might save money by supplying it for pennies on the gallon.

Clipping coupons and rummaging through the couch for quarters to fill the Pool Water Fund jug surely beats clipping coupons and searching through the couch for quarters. It can be tempting to tap into your local water table.

While well water does not come with a price tag, it does have a few features that require particular care.

3- A Delivery Service for Pool Water

It is simple to get water from a local supplier by calling or online. You may not even need to be at home when your water arrives. Your friendly pool water delivery crew will arrive in their transport truck, unload their hoses, fill ‘er up, and leave.

You will return home to a fully functional pool ready for testing, balancing, sanitizing, and swimming! Pre-chlorinated water is provided by some companies, which makes things even more accessible. However, we encourage you to continue to evaluate and balance that water.

The price you will pay for convenience is the most crucial factor to consider. This solution can be your best bet if you do not have a well (or your healthy water isn’t adequate) or face unreasonable prices due to water rationing.

Do not be frightened to compare prices. Get quotations from multiple local suppliers, compare them to the cost of a city water fill-up, and do not forget to account for the time you’ll save compared to a garden hose or a standard pool pump.

The bottom line may be brighter than you think.

Estimated Pool Fill Chart

Based on the shown water pressure of Gallons Per Minute, the chart below should also aid you in predicting how long it will take to clean your swimming pool.










10 GPM

<1000 <2 1/2 <2 <2 <2
5000 12 10 3/4 9 1/4 8 1/3
10000 23 3/4 20 3/4 18 1/2 16 2/3
15000 35 3/4 31 1/4 27 3/4 25
20000 47 2/3 41 2/3 37 33 1/3
25000 59 1/2 52 46 1/4 41 2/3


Standard Garden Hose Size

Standard Garden Hose Size

Garden hoses are available in various shapes, colors, and diameters, including kink resistance, multiple construction, and microbial protection. They are an essential factor in figuring out how long does it take to fill up a pool.

You will also come across more robust hoses and come with extra features, such as a water-flow control valve that allows you to switch off the water flow and change nozzles quickly.

Standard garden holes come in three different diameters:

– Hoses 5/8 inch

– Hoses 3/4 inch

– Hoses 1/2 inch

Just remember that the larger the diameter, the more adequate the water flow; however, you must consider whether you will receive too much water flow.

You may also like to check our article about best automatic pool cleaners.

– 5/8 inch Hoses

The 5/8 diameter is the most common found. It’s a decent size for your yard in general. It also has a more robust flow. With accessories like a hose nozzle, you can control the flow.

You don’t want your yard to flood, especially if you have to lay it down during your watering. It’s also helpful to keep an eye on your automobile or fill the kiddie pool. It’s a fantastic all-purpose hose.

– 3/4 inch Hoses

Many hose diameters of 3/4 and 1/2 inches will also work well because they are just a little smaller than the 5/8 size and are ideal for baskets and container plants. It supports a gentle stream of water that will not harm your plants or flood your yard.

Don’t use too much water to crush your lovely and fragile flowers. Spray nozzles are available in all of these basic sizes.

– 1-inch Hoses

Larger sizes, such as a 1-inch hose, are available, but they are used by professional gardeners and people who use a pressure washer and require a heavy-duty hose. The flow may be too much for your home gardener, so it’s better to stick with one of the standards.

How Much Does It Cost to Fill a Pool?

How Much Does It Cost to Fill a Pool

Given the circumstances, pool filling is less expensive than you may assume. Each month, the average homeowner uses around 12,000 gallons of water. The middle pool is between 15,000 and 30,000 gallons in size.

Using that simple math, it makes sense that your water cost will at least be treble when you fill your pool for the first time with a hose. You could spend more time splashing with family and avoid the stress of work at hand for just a few more pence per gallon.

FAQS: How long does it take to fill up a pool?

Your cost will be decided by factors such as the size of your pool, the source of your water, and whether you're filling it entirely or just topping it off. To fill an average-sized swimming pool with water, most homeowners pay between $60 and $1,250.

Final Thoughts

You have a fresh new pool and want to know how long does it take to fill up a pool. As a rule of thumb, once the water level has reached the pool’s shallow end, a single garden hose will raise the water level one inch each hour.

The amount of time it takes to fill your swimming pool is mainly decided by the water pressure and volume in your pool. It’s critical to understand how many gallons per hour your faucet produces and how much water your swimming pool can store.

The diameter and length of your hose and the water pressure determine how much water your hose can deliver every minute. It means that, depending on the size of the pool, it will fill in 24-72 hours. Filling your pool with a garden hose can take many hours.