1. Is it necessary to empty the pool periodically?
Technical truth: There is no fixed deadline. The frequency depends on:
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Current Water Quality : TDS (total dissolved solids) levels >1,500 ppm indicate a need for renewal.
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Chemical Use : Pools with stabilized chlorine (CYA >100 ppm) require partial changes.
2. Signs to renew the water
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Persistent turbidity despite chemical adjustments.
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Skin/eye irritation even with balanced pH and chlorine (due to accumulated chloramines).
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Calcareous scale embedded in walls (due to high calcium hardness >400 ppm).
3. Professional methods to prolong the life of water
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Partial renewal (30% annually) : Minimizes impacts on the structure and saves resources.
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Treatment with flocculants : To remove fine particles without emptying.
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Reverse osmosis : Technology that filters 90% of impurities without changing the water (cost: $3,000 – $6,000 MXN per session).
4. Risks of incorrect total emptying
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Concrete pools : May crack if the water table is high (requires controlled pumping).
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Pools with liner : Abrupt emptying can deform or tear the material.
Under normal conditions, a well-maintained pool can retain its water 3-5 years . Perform TDS analysis every 6 months and opt for purification treatments before emptying.