A filter that hasn't been serviced in over a year isn't protecting the pool the way it should. Cartridges load up with sunscreen residue, body oils, and fine debris that high-pressure hosing alone won't dislodge, and that layer of contamination reduces flow rate and makes the rest of the chemistry work harder. In South Bay pools with significant tree cover, DE filter grids can blind off with organic matter between seasons. Sand filters work differently but still accumulate channeling and contamination that slowly reduces contact time and lets fine particles through. The symptom is usually the same regardless of filter type: water that looks slightly hazy even when chemistry is correct.
Filter service at K&D Quality is specific to the filter type. Cartridge filters get every element removed, hosed down at full pressure, soaked in filter degreaser if oil loading is visible, and inspected for torn end caps, collapsed cores, or pleating that's too degraded to hold debris. Replacement cartridges for Pentair Clean & Clear, Hayward SwimClear, and Jandy CV systems are stocked for immediate swap-out when inspection shows the elements are past their service life. DE filters are torn down, grids are inspected, and fresh DE is loaded at the correct volume. The manifold and o-rings are checked on every service to prevent the slow bypass leak that lets unfiltered water return to the pool.
For San Jose pool owners, filter service intervals depend heavily on bather load, surrounding vegetation, and how the pool's circulation is scheduled. A pool with heavy use or significant leaf fall will need attention more frequently than one in a clean, low-traffic backyard. Filter service and cartridge replacement done on a proactive schedule—rather than waiting for rising pressure or cloudy water—keeps the system running at full efficiency and typically extends the life of the filter media. The result after a thorough service is measurable: flow rates return to normal, pressure drops to the baseline reading, and the water polishes up more quickly after a demand event.
What's Included
Every filter service & cartridge replacement visit includes
Cartridge, DE, and sand filters
Deep clean with degreaser
Replacement cartridges stocked
Manifold and o-ring inspection
Cleans from $145
Service Area
We proudly serve San Jose, CA and surrounding areas within South Bay, approx. 20 miles from San Jose
San JoseLos GatosSaratogaCampbellWillow GlenCambrian ParkAlmaden ValleyCupertinoSanta ClaraSunnyvale
Full-service weekly maintenance on a fixed route day. Includes brushing walls and tile line, vacuuming as needed, skimmer and pump basket emptying, filter pressure check, water testing for chlorine, pH, alkalinity, cyanuric acid, and salt, and chemical balancing. Equipment is visually inspected every visit and you get a text or email if anything's off. Same tech every week, never subcontracted. Most San Jose pools fall between $165 and $235 per month depending on size and tree cover.
Diagnosis and repair on every major brand: Pentair, Hayward, Polaris, Jandy, Sta-Rite, Zodiac, Raypak. Pumps, motors, filters, valves, plumbing, timers, pressure switches, unions, and o-rings. The parts that fail first ride on our truck, so most repairs close in a single visit. We tell you what's worth fixing and what's worth replacing, with the actual cost difference in writing before any work starts.
Full pool resurfacing for plaster pools showing stains, rough spots, hollow areas, or 15-plus years of wear, and fiberglass refinishing for gel-coat fading and osmotic blisters. Process includes drain, chip-out or prep, bond coat, new plaster or gel coat, fill and start-up chemistry over the first 28 days. Typical residential job runs 7 to 10 working days plus fill time. We coordinate the whole job, no separate contractors to chase.
Service and repair on attached spas and standalone hot tubs. Heater diagnosis, circulation pump replacement, jet repair, control pack swaps, cover lifter installs, and full drain-and-refills with line flush. We work on Sundance, Hot Spring, Caldera, Jacuzzi, and most older builder-grade attached spas. If the spa shares equipment with the pool, we already know the plumbing. Most diagnostic visits run under an hour and end with a clear written quote.
Salt cell diagnosis, descaling, replacement, and full new-system installation. We install and service Pentair IntelliChlor, Hayward AquaRite, Jandy AquaPure, and CircuPool. Existing cell scaled out? We test cell output and plate condition before quoting a replacement, plenty of cells just need a proper acid bath. New install on a chlorine pool typically runs $1,800 to $2,400 installed for a residential South Bay pool, including the cell, control board, flow switch, and plumbing.
Gas heater and heat pump repair on Raypak, Pentair MasterTemp, Hayward Universal H-Series, and Jandy LXi and JXi. Common fixes: ignition control modules, pressure switches, gas valves, thermal regulators, heat exchangers. We also install replacement heaters and run new gas lines through licensed sub when needed. Cold pool the week before a party? We carry the most-failed parts and most repairs finish same day. Full replacement installs run 1 to 2 days.
