Cloudy Pool Water in Las Vegas: Causes, Fixes, and Cost
Cloudy water is the most common complaint Las Vegas pool owners have, and it has three unrelated causes that look the same from the patio: the filter is not catching fine particles, the chemistry is off, or the hard water has pushed calcium out of solution. Treating the wrong one wastes a week of chemicals. Here is how to tell them apart.
Check these first (free)
- Filter pressure: read the gauge. If it is 8 to 10 psi above the clean reading written on the tank, the filter is loaded and the water is cloudy because it is not being filtered.
- Run time: in summer a Las Vegas pool needs 8 to 12 hours a day of circulation, more on a variable-speed pump at low speed. A timer set for a winter schedule will haze the pool by July.
- Chlorine and pH: free chlorine at zero means the haze is the start of algae. A pH over 7.8 makes chlorine weak and lets calcium cloud the water.
- Feel the tile line: rough white scale at the waterline means calcium hardness is high, often over 400 ppm here, and the cloud may be calcium dust that will not filter out.
- Recent dust storm: monsoon storms from July through September dump fine silt into every pool in the valley. That cloud is dirt, and it needs brushing, filtering, and patience, not more chlorine.
What a technician will check
Expect a full water test including calcium hardness, cyanuric acid, and phosphates, a filter inspection for torn cartridges or DE grids, a check of the pump flow, and a look at the chlorinator or salt cell output. Salt cells in Las Vegas scale up fast and a scaled cell quietly stops making chlorine. A good tech will also ask when the pool was last drained, because water that has been in a Las Vegas pool for more than three or four years is usually saturated with calcium and stabilizer and will keep clouding no matter what is added.
What it costs in Las Vegas
| Service | Las Vegas range |
|---|---|
| Service call with water test and chemical balance | $75 to $150 |
| Filter cleaning (cartridge or DE) | $60 to $125 |
| One-time cleanup visit, brush, vacuum, chemicals | $150 to $300 |
| Replace torn cartridges or grids | $200 to $600 for a set |
| Drain and refill for saturated water | $700 to $1,500 plus $90 to $270 in water |
These are Las Vegas ranges to judge a quote by, not a quote. The cost depends on which of the three causes you have. A chemistry cloud is one visit and some chlorine. A filtration cloud is a filter clean or a set of cartridges. A calcium cloud in old water is the expensive one because only a partial or full drain fixes it, and drains in Las Vegas have to go to the sewer cleanout at 12 gallons per minute or less, in the cooler months.
Can you do it yourself
Yes for the first two causes. Clean the filter, run the pump 24 hours, bring free chlorine up with liquid chlorine, and bring pH down to 7.4 to 7.6 with muriatic acid. Skip the clarifier bottles until the filter is clean; they bind particles into clumps that a loaded filter cannot hold anyway. A flocculant works but has to be vacuumed to waste, which most cartridge systems cannot do. After a dust storm, brush the walls and floor, empty the skimmer baskets twice a day, and clean the filter when the pressure climbs. If the pool is still hazy after five days of clean filter and correct chemistry, the problem is calcium or a hidden filter tear, and that is when a company visit pays for itself.
We introduce you to local Las Vegas pool companies. Free for homeowners.
Related answers
- Green Pool Cleanup Cost in Las Vegas: Shock vs Drain and Clean
- Pool Pump Not Working: Humming, Loud, Losing Prime, or Dead
- Pool Algae in Las Vegas: Green, Yellow, and Black and How Each Is Treated
- Pool Losing Water in Las Vegas: Evaporation or a Leak
- Pool Filter Replacement Cost in Las Vegas: Cartridge, DE, and Sand
- Pool Acid Wash Cost in Las Vegas and When You Actually Need One