Say goodbye to stubborn calcium buildup, rust stains, and dark discolorations — without harsh chemicals.

Swimming Pool – Lime & Scale Remover is an acid-free, biodegradable, and non-irritating concentrated formula designed to safely remove lime scale, iron stains, algae marks, and mineral buildup from all pool surfaces — even while the pool is in use.

Ideal for residential or commercial pools, spas, and hot tubs — above ground or inground — this formula delivers professional-grade results with a simple, safe application.

Why It Works

• Safe on all surfaces – fiberglass, tile, metal, vinyl, and concrete
• Removes hard water stains, lime, calcium & rust
• Erases algae discoloration and dark streaks
• No fumes or strong odor – swimmer-friendly
• No need for sandblasting or bead-blasting
• Works underwater and on drained surfaces
• Fast acting — scrub, rinse, and it’s clean
• Cost-effective – save on labor, tools, and downtime

Application Instructions

You can use Swimming Pool – Lime & Scale Remover straight or diluted, depending on stain severity:

• Light buildup: Mix 1 part product with 1 part water
• Moderate buildup: Mix 3 parts product with 1 part water
• Heavy buildup: Use full strength (undiluted)

How to Use

• Pre-wet the surface with clean water.
• Apply directly using a sprayer or sponge.
• Wait 2–3 minutes. For tougher stains, scrub with a nylon brush.
• Rinse thoroughly using a pressure washer or hose until all foam and residue are gone.
• Repeat if stains persist. Allow surfaces to dry fully before repeating.
• After final rinse, apply a 5% baking soda solution to neutralize any remaining residue before discharge.

Use It Anywhere

• Pool tiles
• Spa walls
• Waterlines and scum lines
• Pool floors (drained)
• Ladders and handrails
• Fiberglass and metal surfaces
• Above-ground pool liners

Safe Storage & Handling

• Wear gloves, goggles, and protective clothing
• Avoid contact with open wounds, eyes, or prolonged skin exposure
• Do not swallow — harmful if ingested
• Store in a cool, dry place (40°F–120°F)
• Keep sealed and out of direct sunlight
• Do not freeze

For best results, always follow label directions. Check with your pool supply professional for custom application guidance depending on the extent of contamination.

Note: Always test in a small inconspicuous area before full application.

This product is a liquid pH controller specifically formulated to lower both pH and total alkalinity levels in swimming pool water. Maintaining the pH between 7.2 and 7.8 is crucial for optimal sanitizer performance, clearer water, and the overall health of your pool system.

For best results, test the pH levels before your daily sanitizer addition using a reliable test kit. Testing for total alkalinity requires a specialized kit.

Key Benefits

• Improves overall water clarity
• Softens water by lowering hardness
• Minimizes formation of scale and scum lines
• Helps remove rust, iron, and metallic staining
• Provides long-lasting pH stability
• Reduces the need for excess chlorine and chemicals
• Uses acid-free, eco-friendly technology that’s safer for swimmers and the environment

How to Use

Scatter the liquid directly across the surface of the pool. Allow your filtration system to run for at least two hours after application, then retest the pH level. Repeat treatment only if necessary.

Use the following dosage guide based on your current pH reading:

• If pH is below 7.2, no product is needed.
• If pH is between 7.2 and 7.8, no product is needed.
• If pH is between 7.8 and 8.0, add between 8 and 12 fluid ounces per 10,000 gallons of water.
• If pH is between 8.0 and 8.4, add between 16 and 20 fluid ounces per 10,000 gallons of water.
• If pH is above 8.4, add between 24 and 28 fluid ounces per 10,000 gallons of water.

Avoid adding more than the recommended amount. Always test water again after the system has circulated before applying a second dose.

For High Alkalinity Issues

If your water has high total alkalinity (above 100 ppm), this product can help reduce it. The ideal range is 50 to 100 ppm. To reduce total alkalinity by approximately 10 ppm, apply around 16 to 20 fluid ounces per 10,000 gallons of water.

Cautionary Notes

• Do not mix with other pool chemicals.
• Never pour water into the product container, as this may cause a hazardous reaction.
• Avoid use near metal fittings or the skimmer.
• Always rinse empty containers before disposal.

Storage and Handling

• Keep away from skin and eyes. Use gloves made from rubber, neoprene, or nitrile when handling.
• Do not ingest or inhale product fumes.
• Remove and thoroughly clean any contaminated clothing before reuse.
• Store in a cool, dry place away from direct sunlight.
• Do not expose to temperatures above 100°F or below 40°F.
• Shake well if stored for an extended period. Product shelf life is up to 12 months.
• Keep container tightly closed when not in use and protect from moisture.

Conditions of Sale

Always follow label instructions precisely. Because the manufacturer cannot control weather, water conditions, or application methods, the buyer assumes all responsibility when the product is used outside of the specified directions. EST Inc. accepts no liability for misuse, improper storage, or non-compliance with safety precautions.

This product is a dry, granular acid designed to effectively lower the pH and total alkalinity in swimming pool water. Maintaining balanced water chemistry is essential to ensure sanitizer efficiency, prevent scaling, and protect pool equipment.

Key Benefits

• Lowers high pH levels quickly and safely
• Reduces total alkalinity for better chemical control
• Helps prevent scale buildup and cloudy water
• Improves sanitizer performance and water clarity
• Compatible with chlorine, bromine, and saltwater pools

Usage Directions

To ensure accurate results, always test pH and total alkalinity before adding sanitizer. Use a high-quality pool test kit, and test water regularly throughout the swimming season.

Recommended pH Range: 7.2 to 7.8

Ideal Total Alkalinity: 50 to 100 ppm (use a dedicated alkalinity test kit)

Scatter the dry acid evenly across the pool surface while the filtration system is running. Allow at least 2 hours of circulation before retesting water. If pH is still high, repeat application as needed.

Dosage Guidelines (per 10,000 gallons):

If pH is below 7.2 – Do not apply

If pH is 7.2 to 7.8 – No treatment necessary

• If pH is 7.8 to 8.0 – Apply 8 oz
• If pH is 8.0 to 8.4 – Apply 16 oz
• If pH is above 8.4 – Apply 24 oz

Do not exceed 2 pounds per 10,000 gallons within a 24-hour period. Excessive use may cause pH to drop too rapidly.

For High Total Alkalinity

To reduce alkalinity by approximately 10 ppm, apply about 2 pounds of product per 10,000 gallons of water. Retest after 24 hours and repeat if necessary.

Important Precautions

• Never add water to this product in the container – always apply dry directly to pool water.
• Do not mix with other pool chemicals.
• Avoid application near metal fittings or pool skimmers.
• Rinse out and dispose of empty containers safely to prevent accidental reactions.
• Store in a cool, dry place away from children and pets.

First Aid Measures

• Skin Contact: Rinse thoroughly with clean water for at least 15 minutes.
• Eye Contact: Flush eyes with water for 15 minutes and seek medical attention immediately.
• Ingestion: Drink plenty of water or milk. Follow with milk of magnesia, vegetable oil, or beaten eggs. Contact a physician right away.

pH Plus is a specially formulated liquid designed to raise the pH of swimming pool water. Maintaining proper pH is essential for maximizing chlorine efficiency, ensuring swimmer comfort, and protecting pool equipment. When pH drops too low, chlorine becomes overly aggressive, corroding surfaces and irritating skin and eyes.

Why Proper pH Matters

• Enhances chlorine performance for more effective sanitation
• Reduces corrosion of metal components and pool surfaces
• Improves swimmer comfort by minimizing eye and skin irritation
• Promotes longer equipment life and reduces chemical waste

When to Use

Use this product when the pool's pH falls below 7.2. Always test water with a reliable pH test kit before adding any sanitizer, as low pH can affect chlorine stability.

How to Apply

• Add pH Plus directly over the main drain while the pool is circulating.
• For best results, allow at least 2 hours of filtration before retesting pH.
• Repeat if necessary to reach the ideal pH range of 7.2–7.8.

Recommended Dosage (per 10,000 gallons)

• If pH is below 6.6 – Add 1 gallon
• If pH is between 6.6 and 7.0 – Add ¾ gallon
• If pH is between 7.0 and 7.2 – Add ½ gallon
• If pH is already between 7.2 and 7.8 – No treatment is necessary

Important Notes

• Avoid overcorrecting pH levels; always make gradual adjustments.
• Do not mix with other chemicals.
• Store in a cool, dry place away from children and direct sunlight.
• Use protective gloves when handling for extended periods.

Pool Zyme is a powerful, eco-friendly enzyme formula made from organic botanical extracts and 100% biodegradable ingredients. It’s non-toxic, non-irritating, and safe for swimmers, pets, and the planet. Designed to prevent scum buildup, black waterline rings, and unpleasant pool odors, this plant-based formula breaks down common organic contaminants like body oils, cosmetics, sunscreens, and waste—leaving your pool water clean, fresh, and sparkling clear.

Why Choose Pool Zyme?

• Naturally eliminates waterline rings and scum
• Breaks down suntan lotion, cosmetics, and organic waste
• Conditions water to stay odor-free and crystal clear
• Reduces eye and skin irritation for a more enjoyable swim
• Helps stabilize pH levels and prevents sudden water imbalances
• Decreases dependency on chemical treatments
• Compatible with most pool care systems
• Doubles as a continuous filter cleaner, helping maintain peak filtration efficiency
• Safe for plants, pets, and people

How to Use

Add Pool Zyme directly to pool water once a week while circulation is running. Dosage depends on pool size and frequency of use:

• Use 1 fluid ounce for every 2,000 gallons of pool water weekly
• For larger pools, adjust accordingly (e.g., 4 ounces for 8,000 gallons, 8 ounces for 16,000 gallons)
• For heavily used pools or poor water conditions, increase dosage slightly for optimal results

A single bottle treats over 66,000 gallons of water weekly. Regular use helps your water naturally purge itself of unwanted organics, reducing your need for harsh chemicals and prolonging filter life.

Pro Tips

• Add weekly for best results
• Shake well before each use
• Store in a cool, dry place out of direct sunlight
• Safe to use alongside sanitizers, algaecides, and clarifiers