How Does Sand Get in the Pool?
Sand in your pool is usually caused by a problem with your pool's sand filter. The filter media (the sand itself) is escaping through the return lines. This indicates a malfunction within the filter system.
-
Cracked or Broken Filter Components: The most frequent culprit is damage to the laterals or standpipe within the sand filter. Cracks allow sand to escape the filter and circulate back into the pool water. This is supported by numerous sources including Team Pool Works, XL Pools, and Swim University.
-
High Flow Rates: Increased water flow, such as when using a pool vacuum and then removing it, can momentarily force sand through any tiny imperfections in the filter system. This is a point raised by Trouble Free Pool.
-
Worn-out Sand: While sand itself doesn't technically wear out (Trouble Free Pool), after prolonged use (5-10 years), it can become sufficiently degraded to allow smaller particles to pass through the filter. Trouble Free Pool mentions this as a possibility.
-
External Sources: In some cases, wind or other external factors can blow sand directly into the pool. This is less common than filter-related issues but is a possibility mentioned by Pool Supplies Canada.
Solutions:
Fixing the issue necessitates identifying and addressing the root cause. This often involves inspecting the sand filter for cracks or damage. Repair or replacement of faulty components is usually required. Regular maintenance, including proper backwashing, can help prevent future occurrences.
