pool-service

Pool Draining and Refill Cost in Las Vegas: Why Desert Pools Need It

See what a pool drain and refill costs in Las Vegas, including labor, LVVWD water charges, timing windows, and why desert evaporation forces the job.

Pool Draining and Refill Cost in Las Vegas: Why Desert Pools Need It

A swimming pool in Las Vegas, NV loses somewhere between six and eight feet of water to evaporation in a typical year. All of that water leaves as pure vapor, and every mineral, salt, and chemical byproduct dissolved in it stays behind in the shell.

Top the pool off enough times and the water turns into a concentrate that chlorine struggles to work in. The fix is a full drain and refill, a job most Las Vegas Valley pools need every two to three years, and one that usually runs $400 to $700 once labor and the water itself are counted.

Evaporation Leaves Everything Behind

Tap water in the valley arrives hard before the pool ever runs a single day. Most of it comes from Lake Mead, and it commonly tests near 280 to 300 parts per million of calcium hardness straight out of the hose.

From there the desert compounds the problem. Each top-off adds more calcium, more cyanuric acid from stabilized chlorine, and more total dissolved solids, because none of it leaves with the vapor.

A fresh fill might carry 800 to 1,000 ppm of total dissolved solids. After two or three Las Vegas summers, readings between 3,000 and 5,000 ppm are common, and calcium hardness can climb past 800 ppm.

What Concentrated Water Does to Chlorine and Tile

Chlorine loses punch as TDS climbs. Once dissolved solids run about 1,500 ppm above the original fill level, many owners find themselves burning through twice the chlorine to hold the same sanitizer reading.

Calcium is the half of the problem you can see. Hardness past 500 to 600 ppm starts depositing scale at the waterline, the white crust that rings the tile on so many valley pools by late summer.

Scale also builds where nobody looks: inside salt cells, heater exchangers, and pool plumbing. A heater running on scaled tubes burns more gas to hold the same water temperature, month after month.

The Going Rate for a Professional Drain and Refill

Pool companies around Las Vegas, NV generally charge $175 to $400 to drain a pool, watch the process, and restart the equipment with fresh startup chemistry. Packages that bundle a chlorine bath or a light scrub while the shell is empty tend to land between $500 and $700.

The water is the other line item. Refilling 15,000 to 20,000 gallons through a Las Vegas Valley Water District meter usually adds roughly $75 to $150 to that month's bill, depending on which usage tier the refill pushes you into.

Startup chemicals deserve a line in the budget too, since a new fill needs conditioner and balancers that typically cost $50 to $100. Quotes vary enough that calling two or three pool service companies in Nevada before booking is worth the time.

How Pool Size and Extras Move the Number

A 10,000 gallon cocktail pool and a 30,000 gallon diving pool are different jobs, even though the hourly labor looks similar. The bigger shell takes longer to empty, far longer to refill, and needs more startup chemistry, so quotes on large pools can run $150 to $250 above the base range.

Attached spas add a small wrinkle. Most share plumbing with the main pool and drain along with it, but a crew still spends extra time purging and restarting the spa side, and some companies bill $50 to $75 for it.

Water features work the same way. Rock waterfalls, sheer descents, and swim-up bars all hold water in their own lines, and each one is another circuit to bleed, refill, and test before the equipment goes back on schedule.

Why a Summer Drain Can Wreck the Shell

An empty plaster shell sitting in 108 degree July heat can be ruined in a single afternoon. Exposed plaster dries too fast in that kind of sun, and the surface checks and cracks as the moisture leaves it.

The second risk sits underneath the pool. Soil moisture and groundwater push upward on an empty shell, and without tens of thousands of pounds of water holding it down, a pool can lift partway out of the ground.

Repairing a floated shell often costs more than building a new pool. Many plaster warranties spell out temperature limits for draining, and a July drain can void that coverage on its own.

The Fall-to-Spring Window

October through April is the season for this work in the Las Vegas Valley. Daytime highs under about 85 degrees let a crew empty the pool, handle any extra work, and refill without cooking the plaster.

Local schedules fill quickly once temperatures break in October, so booking two to three weeks ahead is normal in fall. January and February usually offer the fastest turnaround of the whole window.

Spring works too, with one caveat. A March drain should be scheduled early enough that the refill and the chemical balancing finish before the first 95 degree stretch arrives, and there is more seasonal pool care reading on our blog if you want to plan the rest of the year around the desert calendar.

Add-Ons Worth Doing While the Pool Is Empty

An acid wash is the most common companion job, stripping stains and a thin layer of plaster to brighten the surface. In the valley it typically runs $400 to $700 on top of the drain itself.

Tile cleaning is the other big one. Bead blasting or salt blasting the calcium line off waterline tile usually costs $350 to $800 for an average pool, which often works out to $4 to $8 per linear foot.

Smaller checks come cheap while the water is out. A crew can inspect the main drain cover, light niches, and return fittings, and replace a worn drain cover for far less than the same job would cost through a full pool.

Where the Old Water Is Allowed to Go

In the Las Vegas Valley, drained pool water must go into the sanitary sewer, not the street. The legal route is the sewer cleanout, the capped pipe usually found near an exterior wall, and the flow needs to be slow enough that the line never backs up.

Storm drains are off limits because they bypass treatment entirely. Anything entering a valley storm drain moves through the Las Vegas Wash toward Lake Mead, the same reservoir that supplies the drinking water.

Chlorinated water dumped to the gutter can draw a fine from the local municipality or the water reclamation district. A pool company handles the routing as part of the job, which is one more argument for hiring the work out.

What the Restart Looks Like After the Refill

New water goes in unbalanced, and the first 48 hours decide how the next two years go. The crew, or the owner on a self-managed job, adds conditioner, adjusts alkalinity and pH, and brings chlorine up in stages rather than all at once.

Plaster that was acid washed needs gentler treatment. Freshly exposed plaster sheds dust into the water for a week or two, so daily brushing and longer filter run times are part of the restart on those jobs.

Expect the filter to work overtime for the first several days. Running the pump 10 to 12 hours a day during the restart clears the cloudiness faster and lets the new chemistry mix evenly through the whole volume.

Hiring It Out vs Doing It Yourself

A determined owner can rent a submersible pump for $40 to $75 a day, run the discharge hose to the cleanout, and refill with a garden hose. Done carefully in cool weather, the do-it-yourself route saves a couple hundred dollars.

The savings come with real responsibilities. You are the one confirming the discharge point is legal, keeping the shell empty for as short a time as possible, and getting the startup chemistry right on the refill.

Owners with older plaster, a high water table, or any doubt about the sewer cleanout location should leave it to a crew that does this weekly. The gap between a smooth restart and a stained or damaged shell is mostly experience.

Las Vegas Pool Draining FAQ

How much does the water alone cost to refill a pool here?

Even at the upper billing tiers, refill water works out to just a few dollars per 1,000 gallons in the valley. A 16,000 gallon refill often costs less on the water bill than a single month of peak summer landscape irrigation.

How long does a full drain and refill take?

Plan on two to four days from start to swim-ready. Draining takes roughly 6 to 12 hours, a garden hose refill runs 24 to 48 hours, and balancing the new water takes another day.

Is a partial drain ever enough?

A half drain cuts TDS roughly in half, which can buy a year on a pool that is close but not overdue. Valley evaporation rebuilds the concentration fast, so partials are a delay tactic rather than a substitute.

Does a saltwater pool change the schedule?

Salt systems add around 3,200 ppm of salt on purpose, so raw TDS numbers read high by design. Judge a salt pool by calcium hardness and by scale forming on the cell plates instead, and expect a similar two-to-three-year cycle.

Do I need an acid wash every time I drain?

No, an acid wash is for visible staining or heavy scale, not a routine step. Skipping it on a two-year-old surface in decent shape saves $400 to $700, and each wash removes a thin layer of plaster you can never get back.

Can I drain my pool onto my lawn or landscaping?

Not in the Las Vegas Valley, where pool water is required to go to the sanitary sewer through the cleanout. Even dechlorinated water carries enough dissolved salt to damage desert landscaping in a 15,000 gallon dose.