Shock (calcium hypochlorite granules)
Consumable boost chlorine; weekly or bi-weekly use typical; DIY application; 1-2 lbs per 10K gallons typical dose
Installed price$20–$60LA-area, parts and labor
Typical lifespan~0.1 yrswith regular care
Who usually installs it100% DIY · 0% pro
Most installs involve plumbing or electrical work. When wiring or gas lines are involved, call a licensed pro.
Common brandsHTHCloroxHaywardAcme
Repair or replace?
A common rule: if a repair costs more than half the price of new, or the unit is in its last year or two of a ~0.1-year life, replacing is often the better value. Try the repair-or-replace calculator with your own quote. Ranges are LA-area estimates; see How We Estimate.
Related repairs
Maintenance that protects it
Costs and calculators
- Pool ownership costs by pool type
- Shock Treatment (weekly): $20–$50
- Annual Maintenance Cost Calculator
- Pool Running Cost Calculator
- Equipment Lifespan Calculator