How Often to Clean a Pool in Las Vegas: A Year-Round Schedule

Updated 2026-11-05 · For Las Vegas pool owners

There is no off season for a Las Vegas pool. Winter water is cold enough to slow algae but not stop it, and from April to October the pool is in a fight with sun, heat, dust, and swimmers every single day. The schedule below is what a pool in the valley actually needs, by season, with the extra steps that monsoon storms and hard water add.

What to do and how often

April to October (heavy season): test chlorine and pH two or three times a week, because UV can take free chlorine from 5 ppm to 0 in two hot days. Expect a gallon or more of liquid chlorine a week for a 15,000 to 20,000 gallon pool in July. Brush walls, steps, and the tile line weekly. Empty skimmer and pump baskets twice a week. Run the pump 8 to 12 hours a day, or around the clock at low speed on a variable-speed pump. Clean a cartridge filter every 4 to 6 weeks, backwash DE or sand when the gauge rises 8 to 10 psi. Evaporation runs an inch or more a week, so check the autofill.

November to March (light season): test once a week. Chlorine use drops by half or more. Brush every week or two, baskets weekly, pump 4 to 6 hours a day. Clean the filter once in the middle of winter. This is the window for the big jobs: a drain and refill if the water is 3 or 4 years old, an acid wash or tile cleaning, and equipment replacement, because the plaster can be exposed safely and companies are less booked.

After a dust storm

Empty the skimmer baskets the same day and again the next morning.
Brush the whole pool so the silt moves to the main drain and the filter instead of settling into the plaster.
Run the pump 24 hours for two days.
Check the filter gauge; a bad storm can load a cartridge filter in one night. Clean it when pressure is up 8 to 10 psi.
Test chlorine the next day. Dust brings phosphates that eat chlorine, and a marginal pool can turn within three days.
Do not add clarifier until the filter is clean.

What a technician will check on a seasonal visit

Twice a year, spring and fall, it is worth a full check even if you do the weekly work yourself: calcium hardness and cyanuric acid (both climb in Las Vegas and tell you when a drain is due), a filter tear-down and inspection for torn elements, a look at the pump seal and lid o-ring, the salt cell for scale, the heater before the first cold night, and the autofill float. Most expensive emergencies here start as something a tech would have seen in October.

What it costs in Las Vegas

Option	Las Vegas range
Do it yourself, chemicals and test kit	$40 to $80 a month in summer, less in winter
Chemicals-only weekly service	$90 to $140 a month
Full weekly service	$130 to $200 a month, more with a spa or trees
Filter tear-down clean	$60 to $125 per clean
One-time cleanup visit	$150 to $300
Drain and refill every 3 to 4 years	$700 to $1,500 plus $90 to $270 in water

These are Las Vegas ranges to judge a quote by, not a quote. Your own cost depends on how you chlorinate: liquid chlorine is cheapest, tablets raise stabilizer and force an earlier drain, and a salt cell is cheap to run but costs $500 to $900 to replace every 3 to 5 years in our hard water.

When weekly service is worth it versus doing it yourself

Doing it yourself works if someone is home, the pool has no spa and few trees, and you will test three times a week from May to September. The failure mode is a vacation in July. If you travel, have a spa, or the pool turned green in the past year, weekly service at $130 to $200 is cheaper than one $800 recovery. A common middle path: do the summer yourself and hire a company for the spring and fall checks and the filter cleans.

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