A pool in the South Valley is great for about 7 months of the year. The other 5 months, it still needs to be maintained, which is the part nobody told you about when you bought the house with the pool.
Here's what pool ownership actually looks like in Morgan Hill and Gilroy.
Weekly Pool Service: What It Includes
A standard weekly pool service visit covers:
Skimming the surface. Brushing the walls and tile line. Vacuuming the bottom (or checking the automatic cleaner). Testing and adjusting chemical levels (chlorine, pH, alkalinity, stabilizer). Cleaning the skimmer and pump baskets. Checking the filter pressure and backwashing if needed. Inspecting equipment for obvious issues.
That's the baseline. Some companies include filter cleaning in the weekly rate; others charge separately for deep filter cleans (usually quarterly).
Weekly service cost: $120 to $200/month depending on pool size and whether you have a spa.
Chemical-only service (you do the cleaning, they handle chemicals): $80 to $130/month.
DIY Pool Maintenance
You can maintain your own pool. Plenty of Morgan Hill and Gilroy homeowners do. Here's what that looks like:
Time commitment: 2 to 3 hours per week minimum. More in summer when the pool gets heavy use. More in fall when oak trees drop leaves into the water.
Equipment you'll need: Test kit or test strips ($15 to $40), telescoping pole ($30 to $50), skimmer net ($15 to $25), pool brush ($20 to $30), manual vacuum or automatic pool cleaner ($200 to $800).
Chemicals (monthly cost): $50 to $100 for chlorine, acid, stabilizer, and shock. You'll buy these at Leslie's Pool Supply, Home Depot, or online.
The learning curve: Pool chemistry isn't hard, but it's not intuitive. You need to understand the relationship between chlorine, pH, alkalinity, and stabilizer. If one is off, the others go sideways. Most new pool owners over-chlorinate or under-stabilize for the first few months.
When DIY breaks down: Equipment failures (pump motor, heater, salt cell), green water that won't clear, and persistent algae problems. These are when most DIYers call a professional.
Equipment Repair and Replacement
Pool equipment doesn't last forever. Here's what to budget for:
Pool pump motor: $300 to $800 to replace. Variable-speed pumps cost more upfront ($800 to $1,500) but save 60 to 70% on electricity. California requires variable-speed pumps for all new installations and replacements.
Pool heater: $2,500 to $5,000 to replace. Gas heaters last 8 to 12 years. Heat pumps last 10 to 15 years and are more energy-efficient but heat more slowly.
Salt cell (for saltwater pools): $400 to $800 to replace. Lasts 3 to 7 years depending on usage and water chemistry.
Pool filter (replacement): $50 to $200 for cartridge filters (replaced annually). Sand and DE filters need media replacement every 3 to 5 years ($200 to $400).
Pool resurfacing (plaster): $5,000 to $15,000. Needed every 10 to 15 years when the plaster gets rough, stained, or starts flaking.
Tile line repair: $500 to $2,000 depending on linear footage.
Seasonal Notes for the South Valley
Spring (March/April): If you closed the pool for winter or let service lapse, spring startup costs $200 to $400 to get the water balanced and equipment running.
Summer: Peak usage. Chemical demand goes up. If you're hosting weekend pool parties, you'll need to shock the pool afterward to keep the chemistry right.
Fall: Leaf drop from oaks and other deciduous trees is the biggest pool headache in Morgan Hill and Gilroy. A leaf net cover ($50 to $150) saves hours of skimming.
Winter: The pool doesn't freeze in the South Valley, but algae growth slows, chemical demand drops, and the pool sits mostly unused. You still need to run the pump and maintain minimum chemical levels. A lot of homeowners drop to biweekly service in winter to save money.
How to Choose a Pool Service
Ask how many pools they service per day. A tech running 25 pools a day is rushing through each one. 12 to 16 is a reasonable number for quality service.
Ask what's included and what's extra. Filter cleans, equipment checks, and chemical adjustments should be specified in writing.
Check their Contractor State License Board (CSLB) status if they do any equipment repair. Pool cleaning doesn't require a license, but equipment repair does (C-53 Swimming Pool Contractor license).
Get a written agreement. What happens if you're unhappy? What's the cancellation policy? What's covered under their service guarantee?
Got a pool service in the South Valley you'd recommend? Email [email protected].
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