Draining your swimming pool and refilling it with fresh water isn’t something you need to do frequently. However, there are specific times when it becomes necessary. Pool Troopers has expert insights to help you determine how often to drain your pool and what factors to consider before doing so.
Typically, pools should be drained every five to seven years. In some regions with hard water, such as the western U.S., this time frame can be as short as three to five years. This process helps remove built-up metals, minerals, and organic debris that affect both water quality and the pool’s surface.
Before rushing to drain your pool, take a moment to assess whether it’s truly necessary. If your pool looks neglected or murky, it may still be salvageable with proper maintenance rather than complete drainage. Let’s explore the risks, best practices, and signs that indicate when to drain your pool safely.
Why shouldn’t the pool be drained?
NOTE: POOL TROOPERS never suggests homeowners drain their own pool, ever. Hire a licensed professional with insurance, including workers compensation and pool popping as well as local knowledge of rules regulations and groundwater conditions.
The Risks of Hydrostatic Pressure
Draining a pool can have serious consequences due to hydrostatic pressure, the force exerted by groundwater surrounding the pool. When a pool is full, the weight of the water counterbalances this pressure. However, when the water is removed, the surrounding groundwater can push against the empty shell, causing significant damage. This can result in:
- Cracking or shifting of a concrete pool floor
- Lifting of the pool out of the ground, taking the surrounding decking and plumbing with it
Many pools are equipped with a hydrostatic relief valve in the deep end, designed to alleviate this pressure. Even with this safeguard, professional supervision is essential.
Additional Risks of Draining a Pool
Beyond hydrostatic pressure, leaving a pool empty exposes the walls and floor to damage from wind, rain, and extreme temperatures. Pool materials are designed to be submerged, and prolonged exposure to direct sunlight and heat can cause them to deteriorate. For instance, in hot climates like Arizona, an exposed pool finish can blister and peel within days.
When to Drain Your Pool
How often should you drain your pool? According to The Pool Master, most pools require draining every five to seven years, or when Total Dissolved Solids (TDS) levels exceed 2,500 ppm. High TDS levels make it difficult to balance pool chemicals and maintain water clarity. Over time, chemical treatments become less effective, and draining may be the best option.
Factors that influence the need for draining include:
- Frequency of pool use
- Effectiveness of regular maintenance
- The type of water source and environmental conditions
If your pool continues to develop hard water deposits despite regular cleaning, draining and refilling may be necessary to restore water quality and prevent damage.
Trust the Professionals
When it’s time to drain your pool, a professional should handle the process to prevent costly mistakes. Pool Troopers can assess whether draining is necessary and perform essential maintenance to keep your pool in peak condition. In some cases, significant repairs may require an empty pool, and our team can determine the safest approach.
Preventative Pool Maintenance
The best way to avoid premature drainage is through consistent maintenance. Pool water that is not properly maintained can cause long-term damage to the pool’s surface, grout, and tiles. Hard water can lead to calcium buildup, which not only affects water quality but also deteriorates the pool’s finish over time.
Pool Troopers offers customized cleaning and maintenance services to keep your pool pristine and prevent algae growth, which can further damage your pool’s surfaces. Our services are designed to fit your schedule and budget, ensuring you get the most out of your pool year-round.
Schedule Your Pool Service Today
Before considering draining your pool, reach out to Pool Troopers to discuss your options. Our expert team can provide regular maintenance, cleaning, and necessary repairs to extend the life of your pool and minimize the need for complete drainage. Contact us today to learn more about keeping your swimming pool in top condition!
