Pool Losing Water in San Diego
More than about a quarter inch a day beyond normal evaporation usually means a plumbing, shell, or fitting leak. Below: the likely causes, what you can safely check, the typical fix cost, and a link to local help in your city.
Likely causes
- A plumbing line leak on the suction or return side
- A cracked or separated skimmer throat
- A failing main drain or pool light conduit
- Worn valve or fitting seals at the equipment pad
- A structural crack in the shell (less common, more serious)
What to check first
- Run the bucket test to separate evaporation from a real leak
- Look for wet spots or sinking decking near the pad or shell
- Note whether the loss changes when the pump is on vs. off
- Check the equipment pad for visible drips
Get local help by city
Pick your city for the causes most common there, local fix costs, and same-week service.
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Common questions
Why is my pool showing a pool that keeps losing water in San Diego?
More than about a quarter inch a day beyond normal evaporation usually means a plumbing, shell, or fitting leak. The most common causes are a plumbing line leak on the suction or return side and a cracked or separated skimmer throat. A technician confirms it on site.
What does it cost to fix?
Across San Diego County, this repair usually runs $150 to $3,500 depending on the failed part. Your city page has the local range.
Is the diagnosis free?
Yes. A pro in the Refresh Pool Pros network will diagnose it and quote the fix in writing before any work starts. Call (858) 400-4598.
Get a free San Diego diagnosis
Call and we will connect you with a pool pro who finds the cause and quotes the fix in writing.