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How Many Gallons in Hot Tub

A hot tub typically holds about 50 gallons of water, which is equivalent to 628 cups.

The “how many gallons in a 6 person hot tub” is a question that has been asked for years. The answer to the question is dependent on the size of the hot tub. The average 6-person hot tub holds about 75 gallons.

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There are a variety of reasons why you would need to know how many gallons of water your hot tub can hold. This information may be used for a variety of things, like determining the proper quantity of cleaning chemicals, evaluating your water cost, and determining if your patio can sustain the weight of your tub.

The amount of water in a hot tub is determined by its size and design. Even the tiniest Hot Tubs for Two People may contain up to 150 gallons of water.

Read on to learn how to calculate how many gallons of water your hot tub can hold, why knowing how many gallons of water your hot tub can hold is important, and how to maintain your tub for good and safe use.

 

Contents Table of Contents

  • The Volume of Water in Hot Tubs of Various Sizes
  • How to Figure Out How Much Water Your Hot Tub Can Hold
  • How Much Does It Cost To Run A Hot Tub?
  • Taking Care of Your Hot Tub
  • Summary

The Volume of Water in Hot Tubs of Various Sizes

There is a variation in the quantity of water your hot tub can hold depending on whether it is rectangular or circular in form, and the size indicated by how many people can fit inside. Because the weight of a hot tub filled with so many gallons of water may add up quickly, it’s recommended to choose one that weighs less than 3,000 pounds when fully loaded to prevent damaging your patio.

Hot Tubs for Two People

Most Hot Tubs for Two People hold a range from 150 to 220 gallons of water. Typically, these hot tubs weigh about 2,576 pounds when filled with water. This hot tub size will be ideal for you if you plan to put it on a patio, as most decks can only hold up to 3,000 pounds.

Hot tubs for three to four people

Three- to four-person hot tubs may store anywhere from 200 to 300 gallons of water. When filled with water, they typically weigh between 3,185 and 3,700 pounds.

Hot Tubs for Groups of Five or More

Hot tubs that can accommodate five or more people may carry anywhere from 32 and 475 gallons of water, and more. The weight of these big tubs may range from 3,700 to 4,300 pounds.

 

How to Figure Out How Much Water Your Hot Tub Can Hold

There are several techniques for determining the number of gallons of water in your hot tub. Some of these strategies are easier to implement than others, but the effort is well worth it.

Read the owner’s manual for your hot tub.

The guidebook for your hot tub provides a comprehensive reference on everything about the tub. You can determine the amount of gallons of water your hot tub can hold by flipping through it. If you don’t have access to your hot tub’s manual, try another technique.

Contact the company where you purchased your hot tub.

If they still have the precise make and model, the individual who sold you your hot tub should know the dimensions and water capacity. Give them a call and ask a worker, but if they don’t know or you purchased your hot tub used, you may need to try another technique.

Contact the manufacturer for advice.

The manufacturer’s name should be visible someplace on your hot tub. You may be able to uncover their business website or contact information if you conduct a fast search on the company’s name. Send them an email or give them a call, and they should be able to help you out. You may have to utilize a different procedure if your hot tub manufacturer is no longer in business.

Look up information on the internet.

A label with the serial or model number should be placed somewhere on your hot tub. You may use this number to find out how many gallons the tub can contain, as well as basic information about your hot tub or its handbook.

Keep track of how long it takes to fill your hot tub.

Basic math may be used to calculate how many gallons your hot tub contains using a five-gallon bucket and a timer. Time how long it takes your hose to fill the bucket, and keep track of the minutes and seconds. Then use the instructions below:

  1. Time how long it takes to fill your hot tub in minutes and seconds. 
  2. Add the leftover seconds after multiplying the minutes by sixty. Do the same thing for the time it takes to fill the bucket. The total time in seconds it takes to fill both bodies with water is the figure you obtain from this.
  3. Divide the time it took to fill the hot tub (in seconds) by the time it took to fill the five-gallon bucket (in minutes). 
  4. To find out how many gallons of water your hot tub can hold, multiply the figure by five.

Measure Your Hot Tub Manually

Manually measuring your hot tub is the easiest approach to know exactly how many gallons of water your hot tub can store using basic arithmetic if all else fails. There is, however, a distinction between measuring a rectangular and a circular-shaped hot tub.

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Use a measuring tape to determine the length, breadth, and depth in inches of rectangular tubs. Divide the result by 1728 after multiplying the width, length, and depth. If the tub contains seats, multiply the number you obtained by 2.4; if it doesn’t, multiply the number by 4.8. The gallons of water your hot tub can hold is the ultimate amount.

Using circular tubs, measure the length across the tub’s center with a measuring tape, then the depth in inches. Divide the result by 1728 after multiplying the diameter by the depth. Whether your tub has seats or not, multiply the number by 2.4 or 4.8 to get the same result as a rectangular-shaped tub.

How Much Does It Cost To Run A Hot Tub?

The thing about Taking Care of Your Hot Tub is, it involves a lot of fluctuating water consumption. Every time you have to drain and refill your hot tub, your water bill will rise based on the number of gallons of water you use to fill it up. Knowing the number of gallons your hot tub can hold can give you an estimate for that month’s water bill.

Some components in the calculation to generate your estimate may fluctuate depending on the amount of your water bill, but the premise is sound. To calculate the extra charge for filling your hot tub, multiply the capacity in gallons by your water cost multiplied by 0.00134.

For example, if I had a 475-gallon hot tub and a $12.08 water bill, I would multiply both by 0.00134 to obtain 7.68892. This amount will be rounded up to 7.69, resulting in a $7.69 increase in my water bill the month I refill my hot tub.

Taking Care of Your Hot Tub

To guarantee safe use, keep your hot tub clean using chemical treatments such as chlorine and remain on top of emptying and cleaning it. Knowing how many gallons your hot tub holds is essential for completing these chores. 

Cleaning Your Hot Tub

Chlorine is required to eliminate germs found in individuals such as: 

  • Hair
  • Cells of the skin
  • Dirt 

As a result, your hot tub will be safe to use. Most chlorine manufacturers recommend using two tablespoons per 200 gallons of water in your tub. However, using test strips to verify there isn’t too much or too little of the chemical in your tub might be beneficial. If you don’t want to use chlorine, be sure to read our post on alternate sanitizers for your hot tub.

How to Drain Your Hot Tub

Every three to four months, empty and clean your hot tub entirely to wash away any leftover unwelcome germs that chlorine can’t totally break down. You may accomplish this using a submersible pump or the spigot on your hot tub. Before you start emptying your tub, check sure the electricity is turned off. If you have a pool, you may use it to drain the water from your hot tub.

When emptying your hot tub using the faucet, connect a hose to it and bring it downhill to a location where the water will not harm your yard. Then, open the ball valve to allow the water in your hot tub to drain. Another spigot for the internal bleed lines may exist, which you should drain as well.

When How to Drain Your Hot Tub using a submersible pump, place the pump into the hot tub and lead its hose as you would when draining with a spigot. Next, turn the pump on and let it drain.

After How to Drain Your Hot Tub entirely, you should clean the shell with a clean damp rag and a cleaner that is safe to use, according to the manual. The last step to Taking Care of Your Hot Tub is to clean the filter, and then you can refill your hot tub and enjoy soaking again.

Summary

Because each hot tub is created differently, the amount of gallons of water in a hot tub varies depending on its size and form. The multiple ways discussed here make it easy to figure out how many gallons of water your hot tub can store for any occasion.

 

Hot tubs are a popular way to relax and enjoy the outdoors. Depending on the size of your hot tub, you may need to know how many gallons in a 7×7 hot tub. Reference: how many gallons of water in a 7×7 hot tub.

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