Pool Filter Cleaning & Replacement

Your Filter Is Your Pool's Most Important Component

Most pool owners do not think much about their filter until something goes wrong. But your filter is the heart of your pool system. It runs constantly, removing dirt, debris, oils, and contaminants from your water. Without proper filter maintenance, even the best chemicals and cleaning routines cannot keep your pool clear.

Here in Milpitas, pools work hard year-round. Dust, pollen, leaves, and other debris constantly enter your water. Your filter traps all of this, but over time it becomes clogged and less effective. Regular filter cleaning extends the life of your equipment, reduces energy costs, and keeps your water sparkling clean.

We specialize in maintaining all filter types including sand, cartridge, and diatomaceous earth filters. Whether you need routine cleaning or complete filter replacement, we handle it professionally and efficiently.

We Service All Filter Types

Different filters require different maintenance approaches. We are experienced with every type and provide the specific care your system needs:

Sand Filters

Sand filters are popular and durable. They trap debris in a bed of special filter sand. We backwash them regularly to flush out accumulated dirt and replace the sand every 3 to 5 years when it loses effectiveness.

Cartridge Filters

Cartridge filters use pleated fabric to catch contaminants. They provide excellent filtration and energy efficiency. We remove the cartridges, deep clean them with specialized solutions, and inspect for tears or damage. Most cartridges need replacement every 1 to 2 years.

DE (Diatomaceous Earth) Filters

DE filters provide the finest filtration available. They use a powder made from fossilized organisms to trap microscopic particles. We clean the grids thoroughly, check for cracks, and recharge with fresh DE powder. These filters require more maintenance but deliver superior water clarity.

Signs Your Filter Needs Attention

Your filter will tell you when it needs service if you know what to look for. Watch for these warning signs:

• Cloudy or dull water despite proper chemical balance
• Pressure gauge reading 8 to 10 PSI higher than normal
• Reduced water flow from return jets
• Pool taking longer to clear after shocking
• Filter running constantly but water still looks dirty
• Visible tears or damage to cartridges or grids
• Algae growth even with good chemical maintenance
• Higher than normal electricity bills from overworked pump

If you notice any of these issues, your filter likely needs professional cleaning or replacement. Ignoring the problem only makes it worse and can damage your pump or other equipment.

What Our Filter Service Includes

We provide comprehensive filter maintenance that goes beyond basic backwashing. When we service your filter, you get:

• Complete filter disassembly and inspection
• Deep cleaning with professional-grade solutions
• Pressure testing to identify leaks or damage
• O-ring inspection and lubrication or replacement
• Grid or cartridge examination for tears or wear
• Sand or DE media evaluation and replacement if needed
• System reassembly with proper sealing
• Performance testing to ensure optimal operation

For sand filters, we recommend complete sand replacement every 3 to 5 years. For cartridge filters, replacement typically happens every 1 to 2 years depending on usage. DE filters need fresh DE powder after each cleaning and new grids every 5 to 7 years.

If your filter is beyond repair or so old that replacement parts are unavailable, we will recommend and install a new system. We help you choose the right filter type and size for your pool and budget.

Combine filter service with our weekly pool cleaning maintenance for complete pool care. If you are experiencing other equipment issues, check out our equipment repair service. For pools with persistent clarity issues, consider our one-time deep cleaning service.