Owning a pool is a luxury, but like any investment, it needs proper care to maintain its value, safety, and beauty. One common question we hear is, How often should you drain your swimming pool?

The answer depends on several factors: pool usage, water chemistry, and environmental conditions. At J&M Pool Company, we specialize in expert pool care and are here to help homeowners in Georgia make smart, informed decisions about their investment, including when it’s time for a full or partial drain.

When (and Why) You Should Drain Your Pool

Draining a pool isn’t something to do routinely, and it should never be done without care. If it’s done incorrectly, it can cause serious damage to the pool’s structure or equipment. That said, there are specific situations where draining becomes necessary.

  1. Excessive Total Dissolved Solids (TDS): Over time, your pool water collects dissolved minerals, chemicals, and organic matter. These particles accumulate with every splash, chemical treatment, and environmental exposure. When TDS levels get too high, they can cause water clarity issues, reduce the effectiveness of sanitizers, and make it harder to maintain balanced water chemistry.

  2. Severe Water Imbalance: Traditional chemical treatments may no longer be effective if your water tests consistently show imbalances, such as high cyanuric acid, excessive calcium hardness, or low alkalinity. A partial or complete drain may be the only way to “reset” the water and safely restore proper balance.

  3. Persistent Algae Infestations: Algae blooms that won’t go away, even with brushing and shock treatments, often mean contaminants have taken hold in hard-to-reach areas. Draining the pool allows you to perform a deep clean to eliminate the algae.

  4. Surface Staining: Metals, leaves, or high mineral content can stain pool walls and floors. In some cases, acid washing or resurfacing may require draining the pool.

  5. Renovation or Repairs: To update your pool with new tiles, coping, lighting, or plaster, a fully drained pool is required to access surfaces and install new materials properly.

  6. Environmental Contamination: Severe weather events, flooding, or runoff can introduce contaminants like dirt, oils, fertilizers, or sewage into your pool. If the water becomes unsafe or heavily polluted, a complete drain and refill may be the most sanitary solution.

  7. Change of Water Source or Salt System Installation: If you’re switching to a saltwater system or want to start fresh with better-quality fill water, draining gives you the clean slate needed for a healthy, long-lasting conversion.

So, How Often Should You Drain?

As a general rule of thumb, most pools only need to be fully drained every 3 to 5 years, and even then, only if absolutely necessary. Partial draining — replacing just a portion of the water — may be more suitable and less risky, especially in Georgia’s hot climate, where a dry pool shell can crack if exposed too long.

Let the Experts Handle It

Draining a pool involves more than just pulling the plug. You must consider proper drainage methods, local water regulations, and how to protect your pool’s structure during the process. Our team at J&M Pool Company has the expertise and equipment to handle draining safely and effectively, without risking damage to your investment.

We also offer routine maintenance services to help you avoid the need to drain in the first place. Our technicians monitor chemical levels, clean filters, inspect equipment, and keep your pool pristine — all with the personalized care you’d expect from a local expert.

If you’re unsure whether it’s time to drain your pool or want ongoing professional care, our pool maintenance service in Senoia, GA is here to help. Contact us today to schedule a consultation and keep your pool healthy, beautiful, and swim-ready year-round.