Discover How Long Pool Plaster Lasts and When to Replace It

Are you a proud owner of a swimming pool and wondering how long pool plaster lasts? Pool plaster is a crucial component of any swimming pool, providing an appealing finish and keeping the water contained. Over time, pool plaster deteriorates and will require replacement. But, how long does it last, and how do you know when it’s time for a replacement?

Understanding the lifespan of pool plaster is essential for maintaining your pool’s health and beauty. Typically, pool plaster lasts between 7 and 20 years, depending on various factors, including the quality of the plaster and the pool’s maintenance. In this article, we will explore these factors and provide you with all the information you need to know about pool plaster replacement.

Don’t wait until your pool plaster starts showing signs of deterioration to think about replacement. Knowing when to replace your pool plaster can save you a lot of time and money in the long run. Keep reading to find out what factors affect the lifespan of pool plaster and how to tell if it needs to be replaced.

What is pool plaster?

If you own a pool, you are probably familiar with pool plaster. This coating provides a smooth and water-resistant surface to the concrete or gunite shell of your pool. Pool plaster is a mixture of cement, water, and sand that is applied in layers to the pool’s interior. The plaster’s smoothness depends on the size of the sand particles used in the mixture.

Pool plaster is the primary material used to waterproof and protect the interior of a swimming pool. The plaster is strong, durable, and resistant to chemicals and UV rays. A well-maintained plaster surface should last for many years. The longevity of the plaster depends on various factors, including its quality, installation, and maintenance.

Calcium hardness, total alkalinity, and pH levels can all affect the lifespan of pool plaster. If these levels are not balanced, they can cause the plaster to deteriorate faster than expected. For example, high calcium hardness levels can cause the plaster to become brittle, while low pH levels can make the plaster more susceptible to damage from pool chemicals.

It is important to clean and maintain your pool regularly to ensure the longevity of the plaster. Dirt, debris, and chemicals can all cause the plaster to deteriorate faster. Regular brushing and vacuuming can help keep the plaster clean and prolong its lifespan.

If you are planning to build a pool, you have several options when it comes to plaster. Some of the most popular types of pool plaster include white plaster, colored plaster, and pebble finish plaster. Each type of plaster has its own benefits and drawbacks, so it is important to do your research and choose the best option for your needs.

Overall, pool plaster is an essential component of any swimming pool. It provides a smooth and water-resistant surface that not only looks great but also protects the pool’s interior. Proper installation, maintenance, and care can help ensure that your pool plaster lasts for many years to come.

Definition of pool plaster

Term	Definition	Example
Pool plaster	A waterproof coating applied to the interior surface of a concrete or gunite swimming pool.	The smooth, white surface that lines the interior of a swimming pool.

Pool plaster is made up of a mixture of cement, water, and other aggregates. This mixture is applied by hand to the interior surface of a pool to create a smooth, waterproof layer that protects the underlying structure of the pool. Pool plaster can be tinted to various shades of blue or gray, giving your pool a unique look.

Pool plaster has been a popular choice for pool owners for many years due to its durability and aesthetic appeal. However, it is important to note that pool plaster will eventually wear down and require replacement.

There are different types of pool plaster available on the market today, each with their own unique properties and advantages. Some popular types of pool plaster include white cement, colored plaster, and quartz aggregate plaster. The type of plaster that is right for your pool will depend on your individual needs and preferences.

Types of pool plaster

When it comes to pool plaster, there are several types available on the market today. Here are some of the most popular:

• White plaster: This is the most common type of pool plaster and has been used for decades. It is a mixture of white Portland cement, marble dust, and water.
• Colored plaster: This type of plaster is similar to white plaster, but with added pigments to give the plaster a specific color. This type of plaster can also be mixed with different types of aggregates, such as quartz or pebbles, to create a unique look.
• Exposed aggregate plaster: This type of plaster has small stones or glass beads added to the mixture, which are then exposed by grinding away the top layer of plaster. This gives the pool a textured and non-slip surface.
• Pebble finish plaster: This type of plaster is similar to exposed aggregate plaster, but with larger pebbles or stones added to the mixture. The pebbles give the plaster a natural look and feel.

Each type of pool plaster has its own unique benefits and drawbacks. Factors such as durability, appearance, and cost should be taken into consideration when choosing the right type of plaster for your pool.

Next, let’s take a closer look at the pros and cons of each type of pool plaster.

How pool plaster is applied

The process of applying pool plaster is a skilled job that requires experience and attention to detail. Here are the basic steps:

1. Preparation: The pool is drained, and the surface is cleaned and prepared by removing any loose debris, paint or old plaster.
2. Mixing: The plaster mix is made by combining cement, water, and various aggregates. The mix is then pumped into the pool and applied by hand or spray gun.
3. Smoothing: Once the plaster is applied, it is smoothed and leveled to ensure an even surface. This can be done with a trowel or a special pool plaster brush.
4. Curing: After the plaster is applied and smoothed, it needs time to cure. This can take up to several weeks depending on the type of plaster and the weather conditions.

Once the plaster is fully cured, the pool can be refilled with water and balanced before it can be used again. Proper care and maintenance can help extend the lifespan of the pool plaster.

How many years does pool plaster typically last?

Pool plaster is not a permanent solution and will eventually wear out over time. On average, pool plaster can last between 7-20 years depending on various factors such as usage, maintenance, and climate.

The quality of the plaster installation can also have a significant impact on its lifespan. A properly installed pool plaster with high-quality materials can last longer than one that was not installed correctly.

Regular maintenance such as proper water chemistry and brushing the pool surface can help extend the lifespan of the plaster. Neglecting proper maintenance can lead to issues like staining, cracking, and other problems that can shorten the life of the plaster.

Average lifespan of pool plaster

Pool plaster is a durable material that can last for many years when properly maintained. However, the lifespan of pool plaster can vary depending on several factors, such as the quality of the plaster, the water chemistry, and the amount of use the pool receives.

On average, pool plaster can last anywhere from 5 to 15 years before it needs to be replaced. This can vary depending on the factors mentioned above, but a good rule of thumb is to plan for pool plaster replacement every 10 years or so.

It’s important to note that even if your pool plaster looks fine, it may still be nearing the end of its lifespan. As pool plaster ages, it can become rough, stained, or discolored, which can make it less attractive and less comfortable to use.

Factors that affect the lifespan of pool plaster

Water chemistry: Proper water chemistry is crucial to the longevity of pool plaster. Imbalanced water can cause etching, discoloration, and deterioration of the plaster. Maintaining the right levels of pH, total alkalinity, and calcium hardness can help prolong the life of the plaster.

Usage and maintenance: Heavy use of the pool and lack of maintenance can contribute to the breakdown of plaster. Neglecting to clean the pool regularly, improper use of chemicals, and exposure to extreme temperatures can also shorten the lifespan of plaster.

Installation quality: The quality of installation can also impact the longevity of pool plaster. Poor installation techniques or use of low-quality materials can cause the plaster to deteriorate more quickly than it should.

Signs that pool plaster needs to be replaced

Cracks: One of the most noticeable signs of pool plaster deterioration is cracks in the plaster. If you see large cracks, especially ones that are deep, you should consider replastering.

Staining: If you see staining on your pool’s walls or floor, it could be a sign that the plaster is wearing thin. Staining is a clear indication that your pool plaster needs to be replaced.

Rough texture: If your pool’s surface feels rough, it is a sign that the plaster is breaking down. The roughness can make it uncomfortable to swim, and it can also be a sign that the plaster is beyond repair.

Discoloration: Over time, pool plaster can become discolored, turning from a bright white to a dull gray. If your pool plaster has become discolored, it is a sign that it may be time for a replastering.

What factors affect the lifespan of pool plaster?

Water chemistry: The pH and alkalinity levels of the pool water can affect the lifespan of pool plaster. If the water chemistry is not properly balanced, it can cause the plaster to deteriorate faster.

Maintenance: Regular maintenance, such as brushing and cleaning, can help extend the lifespan of pool plaster. Neglecting maintenance can cause stains, discoloration, and damage to the plaster.

Usage: The amount and type of usage the pool gets can also affect the lifespan of the plaster. Heavy usage, such as frequent parties or sports activities, can cause more wear and tear on the plaster.

Climate: Extreme weather conditions can also impact the lifespan of pool plaster. In areas with harsh winters or hot summers, the freeze-thaw cycle or exposure to UV rays can cause the plaster to crack or fade.

Quality of installation: The quality of the installation process can also play a role in the lifespan of pool plaster. If the plaster is not applied correctly, it can lead to premature deterioration and the need for replacement.

Chemical balance of pool water

Proper chemical balance in pool water is crucial for maintaining the lifespan of pool plaster. The pH level of the water should be between 7.2 and 7.8, and the total alkalinity should be between 80 and 120 ppm. High levels of calcium and other minerals in the water can cause scaling, which can damage the plaster.

Chlorine levels can also affect the lifespan of pool plaster. Chlorine is a necessary chemical for keeping pool water clean and safe, but high levels can be corrosive and damage the plaster. Ideally, chlorine levels should be between 1 and 3 ppm.

Stabilizer levels can affect the effectiveness of chlorine in the water. High levels of stabilizer can cause chlorine to become less effective, which can result in the need for higher chlorine levels. However, high levels of chlorine can damage the plaster, so it is important to maintain proper stabilizer levels.

Acidic water can also damage pool plaster. Acidic water can cause etching and deterioration of the plaster surface. Regular water testing and maintenance can help prevent acidic water conditions.

Hard water can also be a factor in the lifespan of pool plaster. High levels of calcium and other minerals in the water can cause scaling, which can damage the plaster. A water softener or regular chemical treatments can help prevent this.

How to tell if your pool plaster needs to be replaced?

If you have a pool with plaster, it’s important to know the signs that indicate it needs to be replaced. Some of these signs include cracks, stains, rough patches, and scaling or flaking. These issues can affect the appearance of your pool, and may also indicate that the plaster is no longer providing a smooth, safe surface for swimmers.

Another sign that your pool plaster may need to be replaced is if you notice a drop in water level that is not explained by evaporation or leaks in the plumbing. This could be caused by water seeping through cracks in the plaster and into the ground.

If your pool plaster is more than 10 years old, it’s a good idea to have it inspected by a professional. Even if you haven’t noticed any obvious signs of damage, age can take its toll on plaster, and it may be nearing the end of its lifespan.

In some cases, pool plaster may need to be replaced due to structural issues with the pool itself. For example, if the pool has shifted or settled over time, this can cause the plaster to crack and separate from the walls and floor. A professional pool inspector can help you determine if this is the case.

If you’re unsure whether your pool plaster needs to be replaced, it’s always a good idea to consult with a professional pool contractor. They can assess the condition of your plaster and provide guidance on the best course of action to keep your pool in top shape.

Visible cracks or chipping

• Cracks: If you notice cracks on the surface of your pool plaster, this is a clear indication that the plaster is aging and needs replacement. Cracks can be caused by ground movement or temperature changes, and can let water seep into the underlying surface causing further damage.

• Chipping: Chipping is another sign that the pool plaster is aging and needs to be replaced. This can occur due to various reasons like wear and tear, exposure to chemicals, or even rough handling during cleaning.

• Stains: Stains are an indication that the plaster is deteriorating and porous, making it harder to clean the pool. If left untreated, the stains will become increasingly difficult to remove, and can even permanently damage the pool plaster.

• Losing smoothness: As pool plaster ages, it will begin to lose its smooth texture, and the surface will become rougher. This can lead to various problems like skin irritation and algae build-up in the pool. If you notice the surface of the pool plaster becoming rough, it’s time to consider a replacement.

• Discoloration: Discoloration can occur due to chemical imbalances, exposure to sunlight, and aging of the plaster. This is an indication that the plaster is becoming less effective at preventing leaks and other types of damage. If you notice any discoloration, it’s best to have a professional inspect the pool plaster and consider a replacement.

Staining or Discoloration

One sign that your pool plaster may need to be replaced is the presence of staining or discoloration. If your plaster is discolored, it could be due to age or improper chemical balance. If the pool water has a high mineral content, it can cause staining and discoloration of the plaster.

In some cases, discoloration can be caused by algae growth, which can be remedied with the appropriate chemicals. However, if the discoloration is due to age or improper chemical balance, the plaster may need to be replaced.

Another potential cause of staining and discoloration is the use of improper cleaning tools or chemicals, which can damage the surface of the plaster over time. It’s important to use the correct cleaning tools and chemicals recommended by the manufacturer to avoid damaging the plaster.

Rough or coarse texture

• Calcium deposits: One common reason for a rough or coarse texture on pool plaster is the buildup of calcium deposits on the surface. This can occur due to imbalanced pool water chemistry, such as high levels of calcium hardness or pH.

• Age: Over time, pool plaster can wear down and become rough due to normal wear and tear. The texture may also be affected by exposure to the elements, such as sun, wind, and rain.

• Algae growth: If pool water is not properly sanitized and maintained, it can lead to the growth of algae on the pool plaster surface. This can cause a rough or slippery texture and discoloration of the plaster.

• Excessive use of chemicals: The use of harsh chemicals, such as muriatic acid, to clean the pool can cause damage to the plaster surface, leading to a rough or coarse texture.

If the pool plaster is rough or coarse to the touch, it may be a sign that it needs to be replaced. A professional pool contractor can inspect the plaster and advise on the best course of action.

What are the consequences of leaving deteriorating plaster?

Damage to pool equipment: As pool plaster deteriorates, small pieces can break off and clog pool filters and pumps. This can cause significant damage to your pool equipment, leading to costly repairs or replacements.

Health risks: Deteriorating pool plaster can be a breeding ground for bacteria and other harmful microorganisms. This can lead to health risks for swimmers, especially those with weakened immune systems.

Aesthetic issues: As plaster deteriorates, it can become stained, discolored, and rough to the touch. This can detract from the overall aesthetic appeal of your pool, making it less enjoyable to use and reducing its value if you decide to sell your property.

Damage to pool equipment

If pool plaster is left to deteriorate, it can cause damage to the pool equipment. As the plaster wears away, it can create debris that clogs the filters and other pool equipment, leading to costly repairs or replacements.

Chemical imbalances: Deteriorating pool plaster can also cause chemical imbalances in the water. The plaster can dissolve into the pool water, altering the pH balance, and making it difficult to maintain a safe swimming environment. This can lead to skin and eye irritation, and other health problems.

Structural damage: If left unchecked, deteriorating pool plaster can lead to structural damage to the pool itself. Water can seep into cracks, causing them to expand and widen, which can eventually lead to leaks, and even cause the pool to shift. This can result in expensive repairs or even require a complete pool renovation.

Increased risk of injury

Slips and falls: Deteriorating pool plaster can become rough, uneven and slippery, making it easy to trip, slip, or fall. This can result in serious injuries such as broken bones or head trauma.

Cuts and scrapes: Chipped or rough pool plaster can cause cuts or scrapes to swimmers. This is especially true for children who are more likely to play and run around in the pool.

Chemical exposure: When pool plaster deteriorates, it can release harmful chemicals into the water such as calcium or lime. These chemicals can cause irritation or chemical burns to the skin or eyes if exposed.

Structural damage: If pool plaster is left to deteriorate for too long, it can lead to structural damage to the pool. This can result in loose tiles, cracks, or even collapse of the pool walls, which can cause serious injury or even death.

How much does it cost to replaster a pool?

Replastering a pool can be a significant investment, with costs varying based on several factors. Size is a significant factor in determining the cost, as larger pools will require more plaster and labor to replaster. Location can also impact the cost, as labor and material costs may vary by region. Additionally, the condition of the existing pool plaster and any necessary repairs or preparation work can also affect the total cost.

On average, the cost to replaster a pool ranges from $4,000 to $7,000. However, for larger or more complex pools, costs can exceed $10,000. It’s important to get multiple quotes from reputable contractors and to understand the scope of work included in each estimate.

While the cost may seem high, it’s important to remember that replastering a pool can extend its lifespan and prevent more costly repairs down the line. Regular maintenance and upkeep can also help prolong the life of the plaster and minimize the need for replastering.

Factors that affect the cost of replastering a pool

• Size of the pool: Larger pools will require more materials and labor, which will increase the cost of replastering.

• Condition of the existing plaster: If the existing plaster is in poor condition, it may need to be removed before the new plaster can be applied, which will increase the cost.

• Type of plaster: There are different types of plaster available, and some may be more expensive than others.

• Additional features: If the pool has features like a spa or waterfall, replastering these areas may require extra work and increase the cost.

Other factors that can affect the cost include the location of the pool, the availability of materials and labor, and the contractor’s experience and reputation. It’s best to get quotes from several contractors to get an accurate estimate of the cost to replaster your pool.

Average cost of replastering a pool

1. The average cost of replastering a pool can vary greatly depending on a number of factors. These factors include the size of the pool, the type of plaster being used, the geographic location of the pool, and the complexity of the job. On average, you can expect to pay between $4,000 and $7,000 for a standard size pool.

2. If you have a larger pool, the cost of replastering will also increase. In fact, for a pool that is over-sized, you could be looking at a cost of $10,000 or more. Additionally, if you want to use a more durable and longer-lasting type of plaster, such as quartz or pebble, the cost will also increase.

3. Another factor that can impact the cost of replastering your pool is your geographic location. If you live in a high-cost area, such as a large city, you can expect to pay more for the job. Additionally, if you live in an area with high labor costs or a limited number of pool contractors, you may also end up paying more.

Overall, the cost of replastering a pool can be quite expensive, but it is an important investment in the longevity and overall appearance of your pool. It is important to get multiple quotes from reputable pool contractors in your area to ensure that you are getting a fair price for the job.

DIY vs. professional replastering

When it comes to replastering your pool, you may be wondering whether to tackle the job yourself or hire a professional. While DIY replastering may seem like a cost-effective option, it can actually end up costing you more in the long run. Without the proper skills and tools, you risk damaging your pool and needing to hire a professional to fix your mistakes.

Professional replastering, on the other hand, comes with a higher upfront cost, but you can rest assured that the job will be done correctly and to a high standard. In addition to having the necessary skills and tools, professional pool contractors also have access to higher quality materials and can complete the job more efficiently than an inexperienced DIY-er.

Another important factor to consider when deciding between DIY and professional replastering is the warranty. If you hire a professional, you can typically expect a warranty of 5-10 years, which can provide you with peace of mind and protect your investment. With DIY replastering, there is no warranty, and any issues that arise will be your responsibility to fix.

Frequently Asked Questions