A pool in this climate loses water every single day without anything wrong with it. So the first task is arithmetic, not excavation: separate ordinary loss from a real one, then test the shell, the plumbing and the equipment as three different things.
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Six boxes, about thirty seconds. You pick when to be called back, and that is when the phone rings.
Or call (619) 603-0192Numbers make this argument, not opinion. The county's water-efficient landscape manual reproduces long-term reference evapotranspiration from the state's irrigation stations: about 46.5 inches a year at the San Diego station and about 5.7 inches in July alone. That is close to a fifth of an inch a day at the peak, before wind, swimmers, splash-out or a backwash cycle. Rain will not make it back either, since roughly 2 percent of seasonal precipitation falls from June through August.
The bucket comparison exists to cancel weather out. Mark the tile at the waterline, stand a bucket of pool water on a step with its level matched to the pool's, then read both after 24 hours. Equal drops mean the climate is doing it. A pool that drops noticeably more has a candidate for a leak, and that is a screening result rather than a diagnosis.
Worth knowing before the water bill arrives. The leak adjustment policy excludes pool leaks by name, alongside irrigation and leaking fixtures, and only a concealed non-irrigation pipe leak is considered at all. Meanwhile the fill water is metered like any other water, climbing the tiers, and the single-family sewer charge is figured from 95 percent of metered use up to its monthly cap. A leaking pool therefore produces a bill with no remedy behind it, which is the practical reason to measure early.
Automatic fill equipment makes it worse by hiding the symptom. With auto-fill running, a leak stops showing as a falling level and shows only as consumption. If the level never moves but the meter never rests, suspect the fill valve and the pool plumbing together.
Rate of loss is the most useful clue on the pad. A drop that speeds up while the pump runs points at pressure-side plumbing after the pump, where lines are under load. Loss that continues with everything switched off points instead at a suction line, the skimmer, a light niche, a fitting or the shell. Air in the pump basket, unexplained bubbles at a return, filter pressure drifting, and damp ground around the equipment are all supporting evidence and none of them are proof.
There is a local reason to look at metal before deck. The city's water facility design guidelines note that much of this area sits in a marine environment where airborne salts and wet-dry cycling in chlorides create significant corrosion activity on exposed metal surfaces. Unions, clamps, valve stems, heater connections and the backflow assembly are cheap to inspect and frequently the answer. Opening decking before that inspection is a way to spend money on the wrong end of the system.
Testing is line by line. Each suction and return line is plugged and pressurized separately with a gauge held for a timed interval, so the failing line declares itself instead of the whole system being condemned. Accessible fittings, skimmer throats and light niches get dye with the pump off and the water dead still. Listening equipment can hear a pressurized escape, and a line can be traced to give the repair a position rather than a guess. One safety rule overrides all of it: a pump run below its safe water level damages the equipment, so stop filling to test and let the level stand.
Restoration is often the bigger half of the invoice. Coping, tile, bond beam work and matching an older deck finish drive a repair number more than the pipe itself does, and a reroute around a failed line is sometimes cheaper than reaching it. City plumbing requirements also constrain where equipment can sit, since pool equipment is not permitted in required side or rear yards in residential zones unless it meets the referenced municipal code provision. For pool contracts the state adds its own paperwork: a plan and scale drawing showing shape, dimensions, construction specifications and equipment specifications, plus the same limit on any down payment.
A useful pool leak visit ends with the loss quantified, the system it belongs to named, and the suspected point marked and photographed. It should say which lines held pressure and which did not, whether the shell was ruled out, and what still needs confirming once water is lowered or a small area is opened. Anything less turns into deck demolition financed by hope.
Pool Leak Detection in San Diego. Call (619) 603-0192 and a technician is dispatched with the parts on the truck. You get the price before the work starts.
Call (619) 603-0192City of San Diego Public Utilities says water pressure varies by location and demand. Under the California Plumbing Code, a property needs a water-pressure regulator when local pressure exceeds 80 psi, and the regulator is the property owner's responsibility.
Why it matters: San Diego's mesas, canyons, and pressure zones mean a reading from another address is not enough. A leak investigation checks static and flowing pressure at the property and tests the regulator before treating weak, surging, or excessive pressure as evidence of a failed buried line.
Source: sandiego.gov
The City of San Diego says older private sewer laterals of concrete, clay, or cast iron can develop root intrusion or deteriorated sections, and that the property owner is generally responsible for maintenance of the lateral to the City sewer main.
Why it matters: Damp ground, odor, or a drainage problem does not automatically indicate a pressurized water leak. When the evidence points to an older sewer lateral, the investigation may need a cleanout or camera inspection instead of water-line pressure testing.
Source: sandiego.gov
The City's Water Facility Design Guidelines state that much of San Diego is exposed to a marine environment, where airborne salts and wet-dry cycling in chlorides can create significant corrosion activity on exposed metal surfaces.
Why it matters: At coastal and near-coastal properties, exposed fittings, valves, clamps, backflow assemblies, and pool or irrigation equipment deserve a close visual inspection before a hidden line is blamed or a deck is opened.
Source: sandiego.gov
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