Why is it important to have your filter sand changed every two years?
Decreased Filtration Efficiency
Over time, the sand in the filter can lose its effectiveness in trapping and filtering out contaminants. It may become compacted, preventing proper water flow and reducing filtration efficiency. As a result, the pool water may become cloudy or develop poor water quality.
Accumulation of
Particles and Debris
The sand bed can accumulate various particles, including dirt, oils, sunscreen residues, algae, and small debris. Despite regular backwashing, some particles may remain embedded in the sand, leading to decreased filtration performance.
Channelling
and Clumping
Continuous water flow can cause the sand to shift and settle unevenly, leading to the formation of channels or clumps within the filter bed. These channels allow water to bypass the sand, reducing its contact time with the filtration medium and diminishing its effectiveness.
Sand Degradation
Over time, the sand particles can become rounded, worn down, or broken. This degradation can result in the formation of fine particles, or "mud balls," which can escape the filter and reenter the pool water. It can also lead to increased sand backwash and shorter filter cycles.
Contamination
In some cases, the sand bed may become contaminated with bacteria, algae, or other microorganisms that are difficult to remove through regular backwashing. This can compromise water quality and potentially lead to health issues if not addressed.
