Phoenix Valley · weather versus a hole
Evaporation versus a pool leak
In the Phoenix Valley, evaporation is real. Hot, dry, windy stretches take water you can see on the tile line. A leak is extra loss that weather, splash, and backwash do not explain. Homeowners often guess wrong because both empty the pool. A locator separates them on site.
What evaporation looks like here
June and July are the usual panic months. The waterline drops, the autofill runs, and the bill moves. That can still be weather. Wind across an open pool and a running waterfall take more water than a still covered spa.
A still overnight is the cleaner clue. If the pool drops while the air is calm and nobody is swimming, leak is more likely. That is still a clue, not a verdict from this page.
Clues that point past weather
The drop continues with the pump off. Soft or wet soil along the bond beam that is not irrigation day. A hollow sound under the deck. A spa that empties while the main pool looks almost stable. Those send people to unexplained water-loss or shell versus plumbing.
A jumping water bill with a full-looking pool can be a stuck autofill — the opposite symptom. Write that if it is what you see.
Why autofill hides the difference
An autofill keeps the waterline honest while a leak or weather takes water underneath. You see a full pool and a higher bill. Turning autofill off for a quiet test — if you already know how — makes the drop visible again.
Do not disable equipment you do not understand. Write “autofill on” or “autofill off” so the person who visits is not guessing.
What this page will not do
It will not assign an evaporation number for your backyard or tell you the pool is fine from a paragraph. Valley weather changes with wind and week. A licensed local pool-leak specialist may contact you if they accept a request. You can decline or wait out a cooler stretch if the loss is small and you are only curious.
Related service requests
These are narrower request pages on this site, not a list of partner shops. A licensed local provider may contact you if they accept a lead.
Local statistics
Phoenix pool leak statistics, 2026 — public-record figures, not a bid from Phoenix Pool Leak Detection.
Questions
Can Phoenix evaporation empty a pool by itself?
It can take a visible band of water in hot, dry, windy weather. That is why a still-night drop or a bucket comparison is more useful than a glance at noon.
If the waterline only drops in the afternoon, is it a leak?
Afternoon drop with a still overnight is more often weather and splash. Overnight drop with the pump off is a better leak clue. A locator still has to confirm.
Should I turn off the autofill?
Only if you already know how. It makes a test easier to read. Write the setting either way. Do not send photos of the inside of a timer panel.
Is a wet deck always a leak?
No. Splash, irrigation, and a leaking water feature can wet a deck. Soft soil that stays wet on a day you did not water is a stronger reason to request a locate.
Related pages
These are more request pages on this site, not a list of partner shops. A licensed local provider may contact you if they accept a lead.
Request pool leak detection in Phoenix Valley
Call if you want to talk now, or send the form. Either way this is a request, not a booked job.
Call (520) 436-9823