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Things You Should Know About Garden Hose Flow Rate

Not knowing a garden hose flow rate is both devastating and hilarious, not in a positive way. Imagine trying to water your flowers or plants with the new garden hose, then it breaks their necks with strong water pressure. This is a rookie mistake for thinking that all garden hoses are the same, they are not. So today, I am going to give you a short brief about some basic information regarding flow rate.

1. What Is Garden Hose Flow Rate?

A garden hose flow rate is the amount of water that flows from a garden hose per minute. The measurement of a rate is GPM (gallons per minute). A proper garden hose and water are important to the plants in the garden or lawn. When the water pressure is too weak, it requires more time than it should to water your flora. In case it is too strong, it can damage the fragile greens and plants in your field. This is why having the right flow rate in a garden hose is essential.

2. Factors That Define Garden Hose Flow Rate

The flow rate of a garden hose varies, depending on several factors regarding the hose itself. There are 3 main parts that affect the flow rate of the hose that you use for your garden. With the right flow rate, you will be able to water your plants and trees with the right amount of water.

2.1. Hose Diameter

Standard-wise, a garden hose comes in sizes of ½, 5/8, and ¾ inch which are the diameter sizes of the hose. If you want the water to come out in a small amount, get a garden hose with a small diameter. Simply put, the smaller the diameter means the fewer gallons per minute that the water passes through the hose. In case you want a large amount of water for your plants, then go for the ones with a large diameter.

2.2. Hose Length

Things are very simple with hose length because the longer the garden hose, the weaker the water pressure. When you shop at the store or online, there are 4 most common garden hose length options that you come across. Those include 25-foot, 50-foot, 75-foot, and 100-foot garden hoses which you can easily see on the package. The diameter and length of the hose determine the flow rate of the water that comes out. If you attach a 25-foot hose with ½ diameter to a water source at 40 PSI, the flow rate is 24 gallons per minute. However, the flow rate is only around 6 gallons per minute, with the hose being 100 feet.

2.3. Water Pressure

Another important aspect that affects the flow rate of a garden hose is the water pressure of the garden hose. Generally, the water pressure of a garden hose is PSI (per square inch) that you can see in the description. This measurement defines the speed of the water that pushes through the hose when you turn on the water. The regular water pressure from home is between 40 PSI to 60 PSI. However, the city’s water pressure can be as high as 80 PSI or more. You want to choose the right garden hose in accordance with the water pressure to prevent bursting or other damages.

3. Garden Hose Flow Rate FAQs:

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3.1. What is the typical flow rate for a garden hose?

A common flow rate for a garden hose is between 9 to 17 gallons per minute. However, this flow rate also depends on the type of the hose that you use. A flow rate for an average garden hose can be anywhere between 12 to 13 gallons per hour.

3.2. How do I calculate a garden hose flow rate?

Although there are different factors that define the flow rate of the hose, the calculation is rather easy and simple. All you need is a 5-gallon bucket and a watch to determine the flow rate of your garden hose. Simply connect the hose to the faucet and turn it on to let the water fill the bucket. Keep track of how much time it takes for the water to fill your 5-gallon bucket. If it takes 5 minutes to fill, then the flow rate is 1 gallon per minute. To makes things even more convenient, here is the fastest way to calculate your flow rate and time.


A garden hose flow rate is very important because it determines the amount of water that the plants receive. The good thing is that calculating the flow rate of your garden hose is easy and simple. This is probably the least aspect that gardeners focus on despite its impacts on the flowers, plants, trees, etc. In case you have across this segment, I am pessimistic that it is going to be useful for you.

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