Pool Filter
Repair & Installation

Your pool filter is what keeps the water clear. When it's not working properly — clogged, cracked, or worn out — no amount of chemicals will fix cloudy water.

Legendary Pools repairs and replaces all types of pool filters throughout San Martin and the Bay Area: Cartridge, Sand, and Diatomaceous Earth (DE). We understand the specific challenges of Bay Area landscaping — like the heavy eucalyptus debris in Saratoga and Los Gatos — and size your system to handle it.

Professional Pool Filter Repair and Installation
Crystal Clear Clarity

Pool Filter Comparison

Choosing the right filtration for your backyard

FeatureCartridge FilterSand FilterDE Filter
Filtration QualityVery Fine (10-15 microns)Medium (20-40 microns)Finest (3-5 microns)
MaintenanceClean cart. manuallyRegular backwashingBackwash + DE recharge
Bay Area PopularityVery HighMediumHigh (Hillside area)
Ideal ForStandard Residential PoolsLarge or Commercial PoolsMaximum Clarity / Heavy Debris

Common Filter Problems We Repair

If your filter pressure is soaring or your water is losing its sparkle, one of these common issues is likely the culprit.

Symptom: Pressure stays highCause: Clogged cartridge, compact sand, or DE depletion
Symptom: persistent cloudy waterCause: Bypass internal leak or torn cartridge/grid
Symptom: Filter leaks from valveCause: Worn rotor gasket or multiport valve seal
Symptom: Sand/DE in pool returnsCause: Cracked lateral (sand) or broken grid (DE)
Symptom: Loud noise during operationCause: Trapped air in system or loose lid seal
Symptom: Very low filter pressureCause: Suction-side flow restriction or pump prime issue

Why Bay Area Filters Clog Faster

Eucalyptus and Coast Live Oak trees drop fine, oily debris year-round in Saratoga, Los Gatos, and the hills. This debris passes through skimmers and coats filters, requiring more frequent cleaning than seasonal deciduous leaves.

Brands We Stock & Service

Pentair Clean & Clear
Hayward Star-Clear
Jandy CS Series
Sta-Rite System 3
Waterway
Zodiac

What's Included In Service

Full Internal Inspection

Pressure testing and valve/seal verification.

Cartridge Cleaning

Deep cleaning or sizing consultation for replacements.

DE / Sand Maintenance

Backwashing, media replacement, and recharge.

Multiport Valve Repair

Full repair of all major multiport valve brands.

Filter Service Costs

Cartridge Cleaning Visit$80 - $150
Cartridge Replacement (incl. part)$150 - $400
Backwash & DE Recharge$100 - $200
Sand Media Replacement$250 - $450
Multiport Valve Repair$150 - $350
New Filter Installation$600 - $1,800

*Estimates for Bay Area. Pricing varies by pool size and load.

Areas We Serve for Filter Service

We repair and install pool filters throughout Santa Clara County, San Mateo County, Marin County, and Contra Costa County — including San Martin, Morgan Hill, Gilroy, San Jose, Saratoga, Los Gatos, Palo Alto, Atherton, Menlo Park, Woodside, Hillsborough, San Mateo, Danville, Alamo, Lafayette, Orinda, Tiburon, Mill Valley, Cupertino, Sunnyvale, and Mountain View.

Santa Clara County
San Mateo County

Pool Water
Cloudy?
Fix Your Filter

A dirty or failing filter is usually the cause of persistent cloudy water — and it's a fast fix when you catch it early. Don't wait until the pool is green.

4.2

Ratings Among Our
Customers

713 reviews on Google

Get In Touch

Luxury Pool
Consultation

Our experts are ready to bring your vision to life. Schedule a consultation to start your dream project.

Call Us

(408) 204-6185

Our Location

13495 Center Ave
San Martin, CA 95046

Email Us

rickpadilla1969@yahoo.com

Premium Quality
On-Time Build
Lifetime Warranty