Maytronics Ltd.

Automatic pool cleaners for above-ground pools offer suction, pressure, and robotic options to keep pools clean, with popular models like Dolphin E10/Nautilus CC (robotic) and Polaris/Zodiac (pressure/suction) providing efficient cleaning, while cordless/handheld vacuums offer convenience for smaller needs, handling debris from floors to walls, though robotic models often provide the most thorough, hands-off experience.1234

Types of Cleaners

• Robotic Cleaners: Self-contained, corded or cordless units that scrub and vacuum, collecting debris in their own filters.
  • Examples: Dolphin E10, Dolphin Nautilus CC, Aiper Scuba, Jacuzzi JAG.
• Suction-Side Cleaners: Connect to your pool's filter system, using suction to move and clean.
  • Examples: Zodiac Baracuda Ranger, Pentair Lil Shark, Hayward AquaBug.
• Pressure-Side Cleaners: Use water pressure from your filter pump (often with a booster pump) to clean and propel themselves.
  • Examples: Polaris Turbo Turtle, Intex ZX100.
• Handheld/Battery-Powered Vacuums: Best for spot cleaning or smaller pools/spas; cordless and convenient.
  • Examples: Pool Blaster Catfish, Water Tech Leaf Vac.123456

Key Features to Consider

• Cleaning Coverage: Some models clean floors only, while others climb walls and waterline (e.g., Dolphin Nautilus CC).
• Power Source: Corded (constant power) vs. Cordless (battery) for more freedom but limited runtime.
• Debris Collection: Internal filter canister (robotic) vs. connecting to your pool's filter system.
• Pool Size: Ensure the cleaner is rated for your specific above-ground pool dimensions.123456

Top Picks & Recommendations

• Best Overall Robotic: Dolphin E10/Nautilus CC are highly recommended for their effectiveness and durability.
• Best Value Robotic: The Dolphin Escape offers strong performance without a high price tag.
• Best Cordless: Aiper Scuba Series are popular for their ease of use and wall-climbing ability.
• Best Suction Side: The Pentair Kreepy Krauly Lil Shark provides solid, basic cleaning.123456

To lower your pool's pH to the ideal 7.2–7.6 range, add muriatic acid or dry acid (sodium bisulfate) to the water while the pump is running . For a 20,000-gallon pool, start with 1 quart of muriatic acid or 1 lb of dry acid to lower pH by approximately 0.2 points. Always pour chemicals slowly into the deep end, preferably near a return jet, and wait at least 4–6 hours before retesting.12345

This video shows you how to safely add muriatic acid to your pool:
52s[

Swim University YouTube • Jun 5, 2022](https://www.youtube.com/watch?v=4cRz7MRz-1U&t=266)

Key Steps and Safety Tips:

• Test First: Use a reliable test kit to confirm pH is above 7.6 and check total alkalinity (ideal 80-120 ppm).
• Use Muriatic Acid: It is the most effective way to lower pH.
• Safety Gear: Wear gloves and eye protection, as it is a strong acid.
• Slow Addition: Pour slowly into the deep end, ensuring the pump is running to circulate the chemical.
• Avoid Over-correction: Add in small increments (1 quart or 1 lb at a time) to avoid dropping the pH too low.
• Alternatives: If you prefer not to use liquid acid, use dry acid (sodium bisulfate) , which is granular and generally easier to handle.
• Consider Aeration: If your pH keeps rising, turn on waterfalls or fountains to increase aeration, which can help stabilize levels, according to this Renke article.
• Time of Day: Add chemicals in the evening to allow proper mixing when the sun is low.1234567

You can also watch this video to learn how to use dry acid to lower your pool's pH:
54s[

Swimming Pool Tips, Reviews & How To - SPL YouTube • Aug 17, 2020](https://www.youtube.com/watch?v=2CSuZ-o6omM&t=229)

Why pH Increases:
High pH is often caused by new plaster, high alkalinity, or the use of salt chlorine generators, which naturally raise pH as they sanitize.123

To lower pool alkalinity, use chemicals like Muriatic Acid (liquid) or Sodium Bisulfate (dry acid) by slowly adding them around the pool perimeter with the pump running , following label instructions carefully, as they reduce both alkalinity and pH. A gentler, slower method is aeration (fountains, jets), while partially draining and refilling with fresh water also works but takes more effort. Always test levels after treatment, as alkalinity and pH are linked.1234

This video provides an overview of how to balance your pool's pH and alkalinity:
29s[

Swim University YouTube • May 3, 2025](https://www.youtube.com/watch?v=JEyWhfn1HbE&t=303)

Chemical Methods (Faster)

1. Choose Your Chemical:
   • Muriatic Acid (Liquid) : Very effective but highly corrosive; use with extreme caution.
   • Sodium Bisulfate (Dry Acid) : A safer, granular alternative.
   • pH Decreaser : A product that lowers both alkalinity and pH.
2. Calculate Dosage : Follow the product's label instructions for your pool's gallonage.
3. Application:
   • With the pump and filter running, slowly add the diluted chemical (or dry acid) around the pool's edge.
   • Avoid "slugging" it in one spot.
   • For muriatic acid, dilute it in a bucket of water (4:1 water to acid) for safer handling.
4. Wait & Retest : Allow several hours or a day for the chemicals to work, then retest alkalinity and pH. You may need to repeat the process if alkalinity is still high, adjusting pH back up if it drops too low.123456789

To lower pool alkalinity, add an acid like muriatic acid or dry acid(sodiumbisulfate) to the water, which will also lower the pH.Add the acid gradually, following product instructions and allowing the water to circulate after each dose, then retest and adjust if needed.You can also aerate the water to raise the pH after adding acid, which helps to more effectively lower the alkalinity while keeping the pH stable, notes this YouTube video and Maytronics.123456

Method 1: Use an acid to lower alkalinity1

1. Determine the amount:Calculate the necessary amount of acid based on your pool's volume and current alkalinity and pH levels.A pool calculator or the product's instructions can help you determine the correct dosage.12
2. Add the acid:Slowly pour the acid into the pool, distributing it evenly around the perimeter, or directly into the return jets to ensure quick mixing.123
3. Circulate the water:Run the pump and filter for at least 4-6 hours to allow the chemical to circulate and react with the alkalinity.1
4. Retest:After circulation, retest both the alkalinity and pH levels.High alkalinity will have been reduced, but the pH may also have dropped.1234

Method 2: Aerate to help with pH and alkalinity balance12

• Aerate after adding acid: To prevent the pH from dropping too low while lowering alkalinity, use a fountain, water feature, or jets to aerate the pool water after adding the acid.
• Aerate on its own: Aeration can be used as a gentler, slower method to lower alkalinity over time.123

Method 3: Drain and refill

• Partially drain:If other methods are too difficult, you can drain a portion of the water and replace it with fresh water to lower alkalinity.This will also lower the pH, so you will need to adjust both as needed.1234

Important considerations

• Safety first:Always wear acid-resistant gloves and eye protection when handling muriatic acid, as it is highly corrosive.
• Gradual adjustments:Avoid making drastic changes.It's best to lower alkalinity in small increments, retesting after each dose, to avoid a chemical imbalance that can harm your pool's surfaces and equipment.1
• Test regularly:Always test your pool's chemistry after making adjustments to ensure the levels are within the ideal range of- ppm for alkalinity and- for pH.12