Pool Care During Monsoon Season: Keep Your Pool Clear in Bad Weather

If you live in Arizona or Nevada, you know monsoon season isn't a suggestion—it's an annual battle. Dust storms, heavy rain, high winds, and debris that seems to come from nowhere can turn your crystal-clear pool into a muddy mess in about 30 minutes. The good news? You can protect your pool and keep it clean through it all. Here's what actually works.

Why Monsoons Are Rough on Your Pool (And What Happens If You Ignore It)

When monsoon season hits, your pool faces three main problems:

1. Debris overload: Leaves, branches, dust, and sometimes entire plants end up in your pool. Your filter works overtime trying to catch it all, and eventually gives up—or breaks.

2. Chemical imbalance: Rain dilutes your chemicals. Dust and debris introduce contaminants. Wind churns everything together. Before you know it, your water turns green or stays cloudy no matter what you do.

3. Equipment stress: Your pump runs harder. Your filter cartridge clogs faster. Skimmer baskets fill up in hours. This accelerates wear and tear on expensive equipment.

The fix starts before the storm hits. Here's your monsoon action plan.

Pre-Storm Preparation: What to Do When You See Storm Clouds

Clear the deck. Use a net to remove leaves and debris from the deck, patio, and surrounding areas. If it's not there, it can't blow into your pool.

Lower the water level slightly. If heavy rain is coming, lower your pool level an inch or two below the normal line. This gives rain room to fall without overflowing. If you don't, rainwater pushing debris over the edge is a headache.

Secure loose equipment. Pool toys, floats, and anything not anchored becomes a projectile in high winds. Stash it.

Check your filter and pump. Make sure everything is running smoothly before the storm hits. If your filter is already strained, bad weather will push it to fail. Keep your filter cartridge clean before monsoon season arrives—a clean filter handles debris much better than a clogged one.

Stock up on supplies NOW. During monsoon season, you'll need extra chemicals, filter cartridges, and shock treatments. We're running an El Niño sale with 5% off everything through July 22nd—no code required. Stock up in-store or online while prices are lower.

During the Storm: Hands-Off (Sort Of)

Once the storm hits, here's what to do:

Turn off the pump during the worst of it. If there's heavy rain and high winds pushing debris into your pool faster than your filter can catch it, turn off the pump. You're just moving dirty water around and wearing out your equipment. Wait until the worst passes.

Let it settle. After the wind dies down but while rain is still falling, leave the pump off for 30 minutes or so. This lets debris settle to the bottom where your main drain can catch it, instead of floating around clogging your filter.

Run the pump on low. When you restart, run it at the lowest speed if you have a variable-speed pump. This gives your filter time to work without getting overwhelmed.

Empty the skimmer basket frequently. During heavy debris periods, check it every hour. A full basket reduces circulation and makes your pump work harder.

Post-Storm Recovery: Getting Your Pool Back

After the storm passes, your pool probably looks terrible. Brown water, floating debris, cloudy mess. Here's the recovery routine:

Step 1: Remove Large Debris

Use a net to fish out leaves, branches, and obvious trash. Don't skip this—if you run the pump with large debris floating around, it goes into your filter and makes it exponentially harder to clean.

Step 2: Run the Pump and Let It Work

Now turn the pump on and let it run continuously for 24-48 hours if you can. Your filter needs time to trap all the fine particles that make the water look brown or cloudy.

If your filter is already dirty (which it probably is), consider cleaning your filter cartridge before you run a long cycle. A clean cartridge works 10x better than a clogged one, and you'll clear the water faster.

Step 3: Test and Balance Chemicals

Rain dilutes everything. Your pH, chlorine, alkalinity—all off. Test your water and add chemicals back to proper levels. You'll probably need to add chlorine shock to kill any algae that started growing during the chaos.

Pro tip: After a major storm, use double the normal shock dose. Your pool has been through a lot, and a strong shock treatment kills problems before they start.

Step 4: Backwash or Clean Your Filter

After 24 hours of continuous running, backwash your sand or DE filter, or clean your cartridge. Your filter has trapped a LOT of debris and needs cleaning to work efficiently again.

If you have a cartridge filter and it's been really abused, this might be the time to check if replacement is needed. A completely clogged cartridge doesn't come clean, and trying to force it usually damages it more.

Monsoon Season Equipment Maintenance: Don't Ignore Wear and Tear

Monsoons are brutal on pool equipment. Your pump, filter, and other components are working harder during storm season. Here's what to watch for:

Filter pressure climbing fast: If your pressure gauge reading jumps 8-10 PSI higher than normal even after cleaning, your cartridge might be damaged or permanently clogged. Most cartridges last 1-3 years, but monsoon season can shorten that.

Pump running hot: If your pump seems louder or is running hotter than normal, it's working too hard. This usually means your filter needs cleaning or replacing.

Skimmer or drain flow reduced: Debris can block your pump intake lines or skimmer lines. Check these connections and clear them if needed.

We stock replacement filter cartridges, pump parts, and filter components for all major brands—Pentair, Hayward, and others. If your equipment is struggling, don't wait until it fails completely.

Pro Tip: Choose the Right Filter for Arizona Weather

If you're thinking about upgrading your filter, monsoon season is the perfect time to think about what type handles debris best. Sand filters are excellent in dusty, high-debris environments like Arizona—they handle the volume better than cartridge filters. But cartridge filters are easier to clean and require less water.

The right choice depends on your pool and your willingness to maintain it. Come talk to our team—we can help you pick the best option for monsoon season.

Your Monsoon Survival Kit (5% Off Through July 22nd)

Stock up before the next storm. Here's what you actually need on hand:

• Pool shock (chlorine and non-chlorine options)
• pH increaser and decreaser
• Alkalinity increaser
• Extra skimmer baskets (they get destroyed)
• Replacement filter cartridges for your specific filter
• Pool net and leaf rake
• Test strips or test kit (old ones get used up quickly)

We're running an El Niño sale with 5% off all these items—no code needed. Shop in-store at our Phoenix, Scottsdale, Chandler, or Las Vegas locations, or order online for same-day pickup. Sale runs July 15-22.

Bottom Line: Monsoon Season Doesn't Have to Ruin Your Pool

Bad weather tests your pool system. But if you prepare ahead, respond quickly when storms hit, and recover properly afterward, your pool stays swimmable. The key is not panicking and not ignoring equipment problems.

If your equipment is already struggling heading into monsoon season—or if a recent storm exposed problems—now's the time to address it. We stock everything you need for monsoon prep and post-storm recovery. Whether you need replacement cartridges, chemicals, or advice, our team is here to help.

Call us at (888) 484-0864 or visit one of our locations. And remember: take advantage of that 5% El Niño discount through July 22nd. Your pool (and your wallet) will thank you.