Common Causes for Pool Plaster Issues

A pool’s plaster interior finish is created for two reasons; to create an appealing water feature that accents your home’s beauty and to protect the integrity and structure of the pool. Pool plaster prevents water from leaking through into the concrete, which could damage the building materials inside the pool’s shell structure. Keeping your pool plaster in good condition is key to the pool’s overall strength and longevity. However, even the most well-maintained pools will eventually show aging and signs of degradation in the plaster, which is a perfectly normal occurrence. With proper care and routine treatments, the life span of 7 to 10 years can be expected for traditional marcite plaster. The timeline can be extended an additional five years if the finish includes a quartz aggregate blend. Even a high-quality plaster finish that is professionally applied to a pool can still have complications occur, sometimes as soon as a few months or a few years after being built. Next, we will discuss common issues found with pool plaster such as streaks, stains, erosion and why they occur.

Pool Water Chemistry

One of the leading causes of plaster corrosion is improper pool water chemistry. Corrosion can occur when a new pool is filled up for the first time or if a large amount of water is added to a pool due to evaporation. Perhaps, water is added outside of your control, such as a big downfall of rain, which, for sure, will change the levels of pH, chlorine, and alkalinity. If and when these events occur, your pool levels will need to be monitored and adjusted to the correct amounts so as not to damage the plaster.

Objects Entering the Pool

Another item that can inadvertently get added to your pool that will change its chemistry is any organic matter such as grass, leaves, plants, or even flower pollen. Not only can it change the water chemistry but it also can cause staining to the plaster in only a few short hours. Other man-made objects can cause damage as well; fertilizer, for example, that can be blown into the pool has iron-rich minerals that can create dime-sized rust spots along the interior sides of the pool. In general, items that contain metal can also leave rust stains throughout the plaster, such as lost coins or hairpins from past swimmers.

Address the Problem Before Significant Damage Occurs

If you believe there is a problem starting to occur with your pool plaster, don’t ignore it! Once an issue begins and if left unattended, the damage will be more challenging to handle. Before trying to do any DIY fixes, it is advised to consult with a professional plaster company that specializes in the repair. You may need to take a few pictures of the damage and send them to a pool contractor where they can then guide you with advice or they may need to make an appointment to assess the damage in person. Simple fixes can be applied if the damage is caught early on, such as brushing out stains or rebalancing the water’s chemistry. If the problem can not be resolved with a quick fix, the pool may need to be drained or partially drained for hand sanding or for an acid wash to be completed. If all else fails and the damage is too extensive for repair, it will ultimately need a complete and costly replaster of the pool.

Pound Pool Plastering serves both commercial and residential settings and provides a variety of selections to service your pool, including plaster, caulk, tiling, cement decks, and plumbing. More information can be found at https://www.pound-pool-plastering.com/.

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