Fiberglass Inground Pools

Have you recently had a fiberglass inground pool installed on your property? Are you considering having one installed?  It is important to know how to care for the pool and keep it looking its best for years to come. Fiberglass pools inground can provide your family with hours of fun during those long hot summer days.  Here we list a few things to know about fiberglass inground pools.

If you haven’t gone through with the pool installation yet, there are a few things to keep in mind to prepare you for your new investment.


One of the benefits of a fiberglass pool is that the surface is not rough and does not scratch, which preserves the look of the pool and makes it safer. Fiberglass is also more resistant to the growth of algae than other pool surface materials and doesn’t hold stains for long periods of time because of its slickness. However, it can stain if you get a gel coat finish.


If you get a gel coat on your fiberglass pool shell, this could stain easily, which means you will need to know how to keep it clean.

There are several reasons why stains can form on the surfaces of your pool area. If there is an imbalance of chemicals in the water or high mineral levels, this could cause deposits to form in and around the pool. It’s also important to watch for rings around the pool, similar to a bathtub ring. This can occur when swimmers have oil or sunblock on their bodies before getting into the pool.

Water Chemistry

You will also need to check the water balance daily, even if you’re considering a small fiberglass pool to be a part of your yard. The pH of the water should be between 7.2 and 7.4 and the alkalinity should be at 80-100 parts per million (ppm). Chlorine levels should be at least 1 ppm and calcium levels for the water need to be between 200 and 400 ppm. If you find that any of these numbers are out of range, you’re likely to start seeing pool stains.

Life Expectancy

Finally, it’s important to be aware of the life expectancy of a fiberglass pool. Even when it comes to small fiberglass inground pools, you should know how long the pool structure is expected to last, so that you can care for your investment appropriately. The pool structure can actually last more than 50 years, but this is not taking into consideration natural disasters like tornadoes and hurricanes. If you take care of your pool and keep it clean, you can even expect that it will maintain its structure for up to 100 years, which means that if you pass your home onto your children or grandchildren, they will still be able to use the pool. Fiberglass is a strong material and is now used for fuel storage tanks because it doesn’t crack or rust.

The gel coat on the surface of fiberglass pools, however, doesn’t last for as long as the actual fiberglass. You’ll need to have the coating replaced every 25 years or so, but the covering lasts much longer than the plaster that is on gunite or marcite swimming pools.

Let Atlantic Pool and Spa help you with your fiberglass pool options and design choices. We can help you make the pool selection that is both practical and fitting for your sense of style. We are located in Morris County and provide all types of pool builder needs to the surrounding counties of Bergen, Sussex, and Warren as well.