How Many Gallons Of Water Are In A 18×52 Pool? [Answered!]

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If you follow the news at all, you might have heard about the recent water shortage in California. With the state currently under a state of emergency, residents are turning to pools to save water. Pools are a wonderful way to save water in your home as you can have fun and swim at the same time. However, the question remains: How many gallons of water do I need for a swimming pool?

To figure out the answer, we need to look at how much water a pool actually needs. While popular belief suggests that a 12-foot pool needs to be at least six inches deep in order to be safe, this is not true. In fact, the depth of your pool does not matter as much as the area that you swim in. This blog post is going to tell you exactly how to choose the right size and shape for your pool, based on how much you want to spend on materials and labor.

The Cost Of Materials

The first and most vital step to choosing the right size is to know what are the costs of the different materials you will need to build your pool. Obviously, the deeper the better, as you will need more materials to build a 12-foot deep pool than a six foot deep one. However, knowing the material costs will help you choose the right size more easily. We have gathered information from a variety of different sources, so you can have an accurate idea of what type of cost you will incur for each material.


Laminate pool decking is very popular these days, as it is easy to install and inexpensive. It comes in a variety of styles, so you can find one that suits your needs. You will typically need to purchase laminate lumber (usually called Laminates by the manufacturers) in order to build your pool, along with primer and paint for the final finish. You will not need to buy fixtures (such as lights or fountains) to complete the installation as they are usually already included in the cost of laminate materials.

Stainless steel appliances

Stainless steel appliances are both practical and stylish, making them perfect for any pool owner. They are easy to clean and maintain, and don’t require much on the surface area in order to operate. This makes them ideal for both small and large pools. Additionally, they are affordable, so you will not need to sacrifice style for practicality. You will need to purchase several pieces of equipment in order to install them, including valves, filters, and heat exchangers. You can also find some great deals online if you know where to look.

Pelican/marina bladders

Another great and stylish addition to any pool is a pelican or marina bladder. These are made from thick plastic with a rubber seal, which makes them virtually leak-proof and very reliable. They are available in a variety of shapes and sizes, so you can find one that will perfectly match and compliment your pool. These are expensive to purchase and install, but the style and comfort they provide make them very well worth it.

Drainage pipes

Drains are an important feature of any pool, especially if you live in a region where it rains often. Without them, your pool could end up damaged by excessive and dangerous amounts of rainwater. In order to choose the right size for your pool, you must first decide how much room you have for each of the different areas where water can collect. This is where the location of your pool and how it is laid out matter most, as you will need to make sure that the places where the water collects are all easily accessible and that they do not get blocked by anything. You might want to purchase a few feet of extra pipe length so you can reach every area easily without having to dig around for the first few inches. Finally, always use a waterproof outlet or plug-type drain to prevent leaks.


For most homeowners, lumber is the second most costly material after concrete, so it is vital that you get the right type and quality. You need to look for pressure-treated lumber that is either red or orange in color, as these are the most common types that satisfy California building codes. However, if you live in a region where winters are harsh, you might want to consider purchasing some white lumber as this is the most durable type. While it is tempting to buy cheap lumber that is either pre-cut or rough-sawn, you must remember that the quality of your lumber will have a direct impact on the end product. The stronger and more solid your lumber is, the more reliable your pool will be when winter time comes. Never compromise on quality when ordering lumber for your project.


Cement is another vital material that you need to consider for your pool, as this is what forms the basis of the entire structure. When choosing the right type and brand, make sure that it is white in color and has a long-lasting binding power that is unmatched by other brands. If you are opting for concrete with vinyl liner, choose a coarse brand so that it will be easy to clean and maintain. For most homeowners, concrete is the preferred and most convenient option, as it is easy to order and cheap. However, if you have a smaller yard, you might want to opt for a gravel-based pool instead as it will save you both time and money in the long run.


Furniture is another crucial element of your pool, as you will need several pieces to complete the look. When choosing the right type and color, look for items that are sturdy and can handle the weight of a good swimmer (approximately 100 pounds). Once you have all of the above material costs, you can easily choose the right size for your pool.

Once you have all of the material costs, you can easily choose the right size for your pool. It is vital to remember that the size of your pool will have an effect on how much space you have for each of the above materials. The larger the pool, the more space you have for bigger items (like water heaters and outdoor fountains). However, the smaller the pool, the more restricted you will be with regards to space and style options (like outdoor showers and small fountains).


Concrete is a versatile and strong material that is easy to order and install, as long as you have the right partner in crime. This partner is usually a licensed contractor who is familiar with all of the California building codes and has the necessary equipment and tools in their van to get the job done quickly and professionally. With concrete, you will need to make sure that you are ordering the right color and type as mentioned above so that it complies with all of the codes and regulations. Once you have your concrete delivered and installed by the contractor, give it at least a week to settle and harden before using it for the first time.

Fixtures & Extras

Fixtures and extras are also important elements of your pool, as you will need various pieces in order to complete the whole look. When choosing the right type, make sure that it is easy to operate and will not require excessive maintenance. If you have chosen a gas-heated pool, you will also need to consider what type of lighting you want installed, along with what type of outdoor lanterns or scented oil lamps you want to use for ambiance. Additionally, you might want to consider getting some waterproof speakers so that you can listen to music while swimming. In general, extras are a great way to add that extra touch of luxury and style to your pool environment, regardless of the size or shape.

Choosing the right shape for your pool can be a real hassle, especially if you have never done it before. There are several different variables you need to keep in mind, like how deep you want your pool to be, where you want the different features to be (like lighting, fountains, or outdoor showers), and how much room you have for each of these elements. If you are looking for a guide to help you choose the right shape for your pool, give our expert designers a call today!

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