Salt Chlorine Systems for Quartz Hill Pools: A Practical Homeowner Guide
Learn how salt chlorine systems work in Quartz Hill’s desert climate, including salt levels, cell care, water balan...
Read Guide →A swimming pool in Palmdale has to work harder than one in a milder coastal climate. Summer temperatures can exceed 110°F, UV exposure is intense, and high winds carry sand, dust, and tumbleweeds into the pool. Those conditions increase evaporation, but they can also hide a genuine leak. Homeowners often assume they are simply adding water because of the desert heat when the pool is actually losing water through a cracked fitting, underground plumbing line, skimmer, light niche, or shell.
A small leak may not look dramatic at first. The water level might drop only a quarter-inch per day, or the autofill may run often enough that nobody notices. Over several months, however, that lost water can contribute to soil movement, deck settlement, erosion behind the pool wall, or expensive chemical imbalance. Constantly replacing water also dilutes chlorine and alkalinity while adding more of Palmdale's hard water, which can increase calcium scale on tile, heaters, and salt cells.
The first clue is a pool that needs substantially more water than it used to. Look for wet soil near the equipment pad, unusually green or soft areas beside the pool, standing water under the pump, or a waterline that consistently stops at the same feature. Cracks in the deck, loose coping, hollow-sounding tiles, or gaps around return fittings deserve attention as well. A leak is not the only possible cause of these symptoms, but they should not be ignored.
Pro Tip: Mark the pool and bucket levels with tape instead of relying on memory. Perform the test after a windy day and repeat it for 48 hours so one gusty afternoon does not lead to a false conclusion.
Before scheduling a diagnostic visit, you can compare normal evaporation with total water loss. Turn off the pool's autofill if it has one and mark the water level. Place a straight-sided bucket on a pool step or on the deck next to the pool. Fill the bucket so the water level is several inches below the rim, then mark both the bucket water level and the pool water level with tape or a grease pencil. Keep the pump schedule and water features consistent, and do not add water for 24 hours.
Measure the drop in the bucket and the drop in the pool. If the pool loses noticeably more water than the bucket, the difference points toward a leak. For a more useful result, repeat the test for 48 hours and perform one test with the circulation system running and another with it off. A greater loss while the pump is operating can suggest a pressure-side plumbing leak. Similar loss with the system off may point toward the pool shell, suction plumbing, skimmer, light niche, or another continuously submerged component.
Palmdale's heat and wind can produce significant evaporation, particularly with an uncovered pool. A pool cover can help reduce evaporation, but it should not be used to conceal unexplained water loss. Water features, splash-out, pool-cleaning systems, and swimmers can also affect the result. The bucket test is a screening tool—not a final diagnosis—and a large or rapidly increasing loss warrants professional testing.
Pay attention to what happens when the pump starts. Air bubbles returning through the pool's return jets, a pump basket that repeatedly fills with air, or a pump that struggles to stay primed may indicate a suction-side air leak. That problem can involve the pump lid o-ring or a loose connection, but it can also involve underground plumbing between the skimmer and pump. Air entering the system is not always the same as water escaping, so the equipment needs to be checked carefully.
Pressure-side leaks occur after the pump and filter. They may show up as damp soil near return lines, water spraying or pooling when the pump runs, or a pressure gauge that behaves differently than normal. Do not rely on a single pressure reading to diagnose a leak. A dirty filter, clogged skimmer basket, failing valve, or variable-speed pump setting can change pressure too.
Inspect the equipment pad around Pentair, Jandy, and Hayward pumps, filters, heaters, salt systems, and valves. Look for mineral deposits, rust streaks, wet unions, cracked valve bodies, and water draining from the filter backwash or relief area. A leaking heater or salt-cell housing can waste water and damage nearby electrical components. Also check the skimmer throat, cleaner line, pool lights, return fittings, and autofill assembly. In older Palmdale pools, brittle PVC fittings and deteriorated light conduit seals are common trouble spots.
Equipment Check: Before assuming an underground leak, inspect pump unions, the lid o-ring, filter drain, heater connections, salt-cell housing, and backwash line for white calcium deposits or fresh moisture. Mineral trails often identify a slow equipment-pad leak.
Call a qualified pool professional when the bucket test confirms abnormal loss, the pool drops below a specific fitting, or the leak continues despite equipment repairs. Professional testing typically begins with a visual inspection and water-loss measurements. Technicians may isolate sections of plumbing and pressure-test individual lines, use dye around suspected shell penetrations, or use specialized electronic listening equipment when an underground line is involved.
Pressure testing should be done methodically and at appropriate pressures for the plumbing and fittings. Excessive pressure can damage older PVC or create a problem that was not there before. A proper technician documents which lines hold pressure and which do not—such as the skimmer, main drain, returns, cleaner line, or spa line—rather than simply guessing based on a wet spot.
Typical costs vary by access and the type of leak. A straightforward leak inspection may cost roughly $150 to $350, while locating an underground plumbing leak and exposing the repair area can run $400 to $1,500 or more. Repairs involving concrete removal, decking, difficult access, or structural shell work cost extra. Finding the source early is usually far less expensive than paying for months of water, chemicals, soil erosion, and damaged equipment.
AV Pool Pros serves homeowners in Palmdale, Lancaster, Quartz Hill, Littlerock, Pearblossom, Rosamond, Acton, and surrounding Antelope Valley communities. As a CSLB-licensed contractor (#1068067), we can help distinguish normal desert evaporation from an actual leak and recommend the least disruptive next step. If your pool is losing water, do not wait for a major crack or a sharply higher water bill—the earlier the testing begins, the more options you usually have.
Common questions about leak detection
Use a bucket test for 24 to 48 hours, comparing the pool's water loss with the bucket's loss. If the pool drops more, especially with the pump running, a leak is likely and should be professionally evaluated.
Common signs include unexplained water loss, air bubbles at return jets, a pump that loses prime, wet soil near the pool or plumbing route, and a water level that stops at a particular fitting. These symptoms can have other causes, so line isolation and pressure testing are often needed.
A basic inspection commonly runs about $150 to $350, while underground line locating and access can bring the total to $400 to $1,500 or more. The final cost depends on the pool's construction, plumbing layout, surface access, and whether concrete or decking must be opened.
Expert solutions for everything your pool needs
Upgrade to an energy-efficient variable speed pump and cut energy costs by up to 80%.
Learn More →Pumps, filters, heaters — we diagnose and repair all brands with same-day emergency availability.
Learn More →Expert advice and troubleshooting guides from licensed high-desert pool technicians

AV Pool Pros has served the Antelope Valley since day one. Our licensed technicians bring decades of combined experience in pool maintenance, equipment repair, remodeling, and water chemistry. Every article we publish is based on real field experience — not recycled internet content.
Contact AV Pool Pro Service today for expert care, cleaning, and equipment repairs.