How Long Does It Take To Fill A Hot Tub?

  • By: Adam
  • Date: April 7, 2022

A hot tub can be a very exciting purchase but a pretty expensive one too.

Many questions may arise during the process of selecting your hot tub one of them being, the length of time that it takes to fill up.

For many this may be a decider regarding the size of the hot tub that they choose.

The time that your hot tub takes to fill up is dependent on many factors, such as the size of the hot tub that you are filling, the water pressure, and the type of pipe that you use to do so.

We have outlined these factors below to provide you with a detailed understanding in regards to how long you will need to wait before enjoying your hot tub.

Factors To Consider When Filling A Hot Tub With Water

The size of your hot tub

The time taken to fill a hot tub can differ depending on its size. Hot tubs have a level which they will need to be filled too before use.

A standard size hot tub is believed to take 1 and ½ to 2 hours to fill to its capacity. However, for larger sized hot tubs you should expect for it to take slightly longer than this.

A standard hot tub measures 300 gallons while a larger hot tub measures approximately 700 gallons hence why it can take an hour or so longer to fill to its maximum level.

The Type of Hot Tub

The type of hot tub that you purchase is going to influence the time it consumes to be filled.

The market offers variations of hot tubs, some that will need to be connected to your main water supply or a portable option that can be filled using a garden hose pipe.

For those that require the use of a hose pipe, it is important to consider the size of the hose pipe that you are going to use. Of course, a narrow hose is going to take considerably longer to fill the hot tub as the flow of water isn’t going to be as powerful as a wider hose pipe.

Using an adequately sized hose pipe can fill the hot tub in as little as 45 minutes.

It is important to ensure that you don’t leave the hosepipe inside the hot tub unattended for prolonged periods as some will fill the hot tub fairly quickly.

The Water Pressure

The water pressure in your area is also going to affect the amount of time that the hot tub takes to be filled. If the water pressure at your property is poor then of course this is going to mean that your hot tub takes a significant amount of time to fill.

Likewise, if you live in a property that is equipped with powerful water pressure then of course this is going to drastically reduce the amount of time that it takes to fill.

While the water pressure of your property is of course going to influence the amount of time that a mains connected hot tub takes to fill, it is also going to affect the amount of time that it takes to fill a hot tub with a hose pipe.

Filling up your hot tub correctly

Believe it or not, it is actually possible to fill up your hot tub incorrectly, and doing so can cause some costly damage.

As mentioned previously, a hot tub has a fill line which it should be filled up to as this will determine that there is the correct amount of water inside. This can differ depending on the type of hot tub that you choose.

Those that are larger are of course going to be able to hold more water than a standard-sized hot tub. Ensure that the jets are sufficiently covered and that the water is filled above the sensor level. It is also important to confirm that the hot tub is filled to its maximum capacity before you turn it on to begin heating.

It is important to ensure that your hot tub isn’t filled more than 2 to 3 inches above the filter as the level will naturally rise when it is heated and in use.

If you are filling a hot tub for the first time ensure that you are confident in the amount of water required for your specific type of spa as this will help to prevent the occurrence of any damage.

Refilling your hot tub

Once you have found the best way of filling your hot tub that accommodates your needs and the best method that you have available, it is necessary to remember that your hot tub will need to be refilled in the future.

However, not to worry, this doesn’t mean to say that you are going to find yourself having to refill your hot tub regularly. In fact, when filled the water will last for around 3 to 4 months without needing to be changed.

Of course, the immediacy in which you change the water is going to depend on the frequency in which it is used.

Final Thoughts

As you can see, the length of time taken to fill your hot tub depends on a range of factors.

If you have a larger hot tub you should expect it to consume more time to fill to its maximum capacity as it holds much more water.

The water pressure is also going to be influential in the amount of time that it takes to fill.

If you have low water pressure this ultimately means that the water is going to flow at a slower pace so your hot tub is going to take longer to fill up.

As tempting as it is to invest in a hot tub and jump in it straight away, it is important to adhere to the specifications of your particular hot tub as this will ensure that it is filled correctly and there isn’t a risk of it becoming damaged in the process.