Summer’s here, the days are longer and you can practically hear the pool calling your name. There’s nothing better than sunny days, cool water and floating the afternoon away. But before you jump in, it’s normal to have a few pool care questions on your mind. Don’t stress, we’re here to give you answers.

We’ve rounded up the most common (and a few you might not have thought to ask) questions about pool care and our simple answers to get your summer off to a splashing start. Let’s go!

A backyard swimming pool surrounded by a neatly trimmed green hedge and stone tile patio, with a bench on one side. In the background are lush trees, flowering bushes, and houses with red-tiled roofs under a clear blue sky.

Q: When should I open my pool for the season?

It’s better to open your pool earlier rather than later. It’s not about the month, it’s about the temperature for the region you’re located in.

It’s best to open your pool before your water temperature reaches 60º. Or, open it when the outside daytime temperature stays consistently above 70º.

Why?

When a pool is closed, the water is stagnant since the pump isn’t operating. And, when the water temperature rises above 60º, algae growth is set into motion. Don’t give it a chance, open your pool even if you don’t plan to use it; it’s easier to maintain it once it’s opened than to let it sit stagnant.

For detailed Pool Opening steps, read our How to Conquer Pool Opening” blog here.

Q: What is the most important part of pool care?

Great question! It’s water balance. Balanced water is the key to consistently clean, clear water.

Balanced water means that the chemical levels in your pool are in harmony; in other words, the water’s chemical levels are in the ideal ranges.

To maintain balanced water, focus on keeping the top three chemistry levels within their ideal ranges.

Total Alkalinity: 80 – 120 ppm

pH: 7.2 – 7.8

Total Hardness: 200 – 400 ppm

Water Care Expert Tip: Use our FREE FROG® Water Balancing Guide to balance your pool easily!

We also have a detailed blog on Pool Water Balancing, read it by clicking here.

An overhead shot of beautiful and clear pool water

Q: How do I keep my pool clean?

In addition to maintaining water balance, sanitizer levels are essential to keeping pool water clean and clear. You must have enough chlorine in the water to kill bacteria and viruses; the industry standard for an all-chlorine pool is 1.0 ppm – 4.0 ppm.

Too much chlorine is irritating to skin, eyes, hair, bleaches swimsuits and can damage surfaces. Too little chlorine won’t adequately kill bacteria and viruses, making water not safe to swim in.

An image of the chlorine tile on the periodic table

It’s a great idea to find the option that’s right for you and your pool habits. We recommend  Pool FROG® to sanitize your pool. Pool FROG helps keep water Cleaner, Clearer and Softer®. Plus, it kills bacteria 2 ways, with a low amount of chlorine and FROG Sanitizing Minerals®.

This combination means you use up to 50% less chlorine* so your swimsuits don’t fade, and surfaces are protected.

Plus, FROG Sanitizing Minerals conditions the water for softness and absorbs acids for a more stable pH.

Q: How often should I test my pool water?

Water testing is the foundation of proper pool maintenance. Why? Because it keeps you in the know on how your pool water is doing. Testing your water regularly allows you to monitor the key factors we mentioned above: Chlorine, Total Alkalinity, pH and Total Hardness.

If you use FROG Products, you should test your pool at least once a week. If you don’t use FROG, it’s best to test at least twice a week. For all pools, it’s important to also test after storms, heavy use or when you top off the pool with fresh water.

A white plastic container with a blue cap sits on the edge of a clear blue swimming pool, with pool cleaning tools visible in the water in the background.

Q: How often should I shock my pool?

Weekly shocking is typically recommended for all pools! In addition, it’s smart to shock again after heavy use or rain. Be sure to follow the manufacturer’s directions for use.

Q: How often should I run my pool pump?

Your pool pump circulates and filters pool water. Running the pump for an adequate amount of time each day – we recommend at least 8 hours – is essential to ensure the water is properly circulated and filtered, preventing algae and bacteria growth.

All the water in your pool must run through this filtration process at least once a day to keep your pool clean, clear and ready for action.

Aim to run your pool’s pump for at least 8 to 12 hours of circulation per day, adjusting as needed based on the size of your pool and the climate in your area!

Q: How often should I brush my pool?

Every week! It makes a big difference in making sure your pool is always ready to jump into. Be sure to brush all the surfaces of your pool – the walls, floors and steps if you have them – it goes a long way to prevent algae and clean out debris.

Water Care Expert Tip: Always brush the floor from the shallow end toward the drain in the deep end. All debris collected while brushing should be pushed toward the main drain, where it will go to the filter.

A person wearing white sandals stands at the edge of a swimming pool, holding a long-handled blue pool brush submerged in the water. White decorative stones line the pool’s edge.

Q: How often should I clean my pool filter?

Your pool filter is one of the unsung heroes of pool care. It works behind the scenes to keep your water clean and clear. Regular filter maintenance isn’t just a good habit — it’s essential for water care and the longevity of your equipment.

The frequency of cleaning your pool filter depends on the type of filter you have and how often you use your pool — but as a general rule, you should clean your filter about once a month.

A couple of signs will also let you know when it’s time for a cleaning:

  • Your filter pressure gauge rises 10 psi above normal
  • Your pool water starts to look cloudy
  • There’s weak flow from the return jet(s)

Q: How do I clean my pool filter?

The method you’ll use to clean your pool filter depends on your filter type. The three most common kinds of pool filters are cartridge, sand and diatomaceous earth (D.E.) filters.

A hand is holding two cylindrical pool filters with blue rims and white pleated paper. The background shows a clear blue swimming pool with visible water ripples and a grid pattern on the pool floor.

Quick Pool Filter Cleaning Tips:

  • Never use a pressure washer – it can damage delicate filter materials.
  • Avoid bleach for cleaning filters, especially cartridges, as it weakens the fibers.
  • Monitor your filter pressure gauge regularly to stay ahead of maintenance needs.
Aerial view of a rectangular swimming pool with greenish water, suggesting algae growth. The pool is bordered by a concrete deck, with green-cushioned lounge chairs and a small table on the right side. Greenery is visible at the bottom edge and a tree partially appears in the top left corner.

Q: How do I get rid of pool algae?

Algae can happen to anyone! The key is to act fast when you notice any signs of algae.

To get rid of pool algae, start by running your pool pump 24 hours a day to promote water circulation and distribute chemicals evenly. Then shock the pool with chlorine to raise free chlorine levels to at least 2-4 ppm and add an algaecide. This will help kill existing algae and prevent further growth.

For an algaecide, we recommend FROG® Algae Gone™. It’s easy, powerful and effective. Plus, it can be used in any pool – even if you don’t use FROG Products already. FROG Algae Gone comes in a prefilled Pod. All you need to do is Drop ‘n Go™ in your skimmer!

Water Care Expert Tip: Algae presence in your pool water means fluctuations in pH, so be sure your pool’s pH is between 7.2 and 7.6.

During this process, brush your pool surfaces at least twice a day to break up algae’s protective barrier. After you brush, be sure to vacuum to remove dead algae and debris, then clean or backwash the pool filter afterward to maintain good water flow and filtration. Continue this cycle until the water is clear!

For more detailed steps, read our blog How to Get Rid of and Prevent Pool Algae.”

Q: How can I avoid pool algae?

The best way to prevent algae in your pool is by sticking to a consistent, simple maintenance routine. Keep your water’s pH between 7.2 and 7.8, and ensure chlorine stays within the recommended range — 1 – 3 ppm for standard chlorine pools or 0.5 – 1.0 ppm with mineral systems like FROG. Balanced water keeps algae at bay and helps your pool chemicals work effectively.

Clean or backwash your filter regularly to remove debris and organic matter, which algae feed on. Skim leaves, bugs and other debris as soon as you notice it, and if possible, use a pool cover when your pool isn’t in use.

For extra protection, use an algae preventive treatment like FROG® 90-Day Algae Barrier™. It prevents algae for 90 Days – Guaranteed! It’s a dry, concentrated copper-based formula that goes to work fast and comes in a prefilled Pod. Just Drop ‘n Go in your pool’s skimmer!

A person holds a black packet labeled '90 DAY ALGAE BARRIER' above an open pool skimmer with the lid removed, showing water and debris inside. The packet is a product intended to prevent algae growth in swimming pools.

Q: How do I fix cloudy pool water?

To fix cloudy pool water, start with water balance. Make sure Total Alkalinity, pH and Total Hardness are within their ideal ranges. Test and use adjustment chemicals as needed.

Low chlorine levels are a common cause of cloudiness, so shock the pool to quickly raise chlorine and sanitizer levels. Follow the manufacturer’s instructions for the correct dosage based on your pool size. Also, check that your pool filter is clean and working properly, as dirty or broken filters worsen water clarity.

Finally, increase your pump’s run time — ideally 24 hours a day until the water clears — to help circulate and filter the water. Vacuum debris from the pool floor and, if cloudiness persists, consider using a pool clarifier to gather tiny particles for easier filtration. With consistent care, your pool will be clear and inviting again in no time.

For more detailed steps read our blog Cloudy Pool Water? Get Expert Tips for a Crystal Clear Pool

Q: How can I prevent cloudy pool water?

A crystal clear pool is the result of consistent maintenance and balanced water chemistry. It’s also the key to preventing cloudy water. Here’s how to start a reliable pool maintenance routine:

A swimming pool with cloudy blue water and a curved step area leading into the deeper section. The pool is bordered by a tiled edge and a paved patio, with potted plants, trees, and outdoor furniture including a chair and table in the background.
  • Check your pump basket, skimmer basket and filter once a week to clear out debris and blockages. An efficient filtration system helps keep water clear!
  • Run your pump at least 8 hours a day. This is especially important during hot weather where algae and cloudiness thrive. If your pool is repeatedly getting cloudy, increase your pump time.
  • Shock your pool regularly – every week is best. Shock extra after heavy use or rainstorms. Shocking helps eliminate contaminants in the water that your regular sanitizer, chlorine, might miss.
  • Test your water weekly and keep the key water chemistry levels within these ranges:
    • Total Alkalinity: 80 – 120 ppm
    • pH: 7.2 – 7.8
    • Total Hardness: 200 – 400 ppm
    • Free Chlorine with Minerals (like FROG): 0.5 – 1.0 ppm
    • Free Chlorine without Minerals: 2.0 – 4.0 ppm

Want an easy way to prevent cloudy pool water for 90 days at a time? Try out FROG® 90-Day GoodBye Cloudy™! It’s a dry, concentrated formula that removes particles that cause cloudiness – all in a Pool Pod. Just Drop ‘N Go in the skimmer and say goodbye to cloudy pool water for 90 days!

Q: When should I close my pool for the season?

It’s best to close your pool when the outdoor temperature is consistently between 50F – 60F and your pool water temperature is consistently below 65F.

Cooler temperatures help prevent algae and bacteria growth.

Did you know there is such a thing as closing your pool too early? Many people see Labor Day weekend as pool closing weekend.

However, this may be too early in certain climates. If you close your pool too early, you may invite algae growth.

According to the Environmental Protection Agency, EPA, warmer water is easier for small organisms to move through and allows algae to float to the surface faster. Water temperatures in the 85F range gives algae and bacteria an invitation to curl up in a corner of the pool and begin growing.

If temperatures warm up to 65F and higher for a day or longer, algae can use up your winter chemicals early and start to accumulate.

But don’t wait too late to close your pool either – autumn temperatures can take a sudden dip below 32F, potentially causing expensive damage. Find the right time for your climate – and don’t hesitate to reach out to your local dealer for advice!

For more detailed steps on pool closing read our detailed blog post on just that here.

Bonus Pool Owner Tips:

  • Replace your FROG cartridges on time for consistent, hassle-free water care.
  • Keep a clean pool cover to avoid debris and algae problems during off days.
  • Check your water level weekly – it should be halfway up the skimmer opening.
  • Always keep a backup test kit or test strips on hand in case of accidents or expiration.

Your turn to answer! Are you ready for a relaxing pool season?

Pool care doesn’t have to be complicated. We hope we answered your burning questions so you can enjoy a stress-free pool season.

Got a question we didn’t cover? Reach out to our customer service team at 800-222-0169 Monday through Friday, 8 AM – 5 PM CST or visit your local FROG dealer (you can find yours here)

A person in a red swimsuit stands in a swimming pool holding a colorful beach ball. Green bushes and outdoor furniture are visible in the background.

We’re always happy to help!

*Compared to the minimum EPA recommended chlorine level of 1.0 ppm for a stabilized swimming pool.
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