Best Pool Chemicals

HTH 52031 Pool Shock Treatment - Cal Hypo Chlorine Booster, Fast-Acting Sanitizer & Clarifier for Crystal Clear Water, 13.3oz

HTH 52031 is a Cal Hypo-based multi-use pool shock that sanitizes, clarifies, and prevents bacteria and algae while boosting chlorine levels without adding CYA. Pool owners with vinyl-lined or saltwater systems should buy it for fast-dissolving treatment solving 90% of water problems in 24 hours.

• Restores sparkling clear pool water by shocking, sanitizing, clarifying, and preventing bacteria and algae growth
• Solves 90% of common pool water issues within 24 hours with fast-acting, fast-dissolving formula
• Sanitizes without adding cyanuric acid to avoid overstabilization and chlorine lock
• Compatible with all pool types, including vinyl-lined and saltwater systems
• Easy weekly use maintains crystal clear water when paired with HTH 6-Way Test Strips

Rapid results in under 24 hours for most problems. Versatile for all pool surfaces and systems. Prevents algae and bacteria without CYA buildup.

Single 13.3oz pack may require multiples for larger pools. Cal Hypo formula can gradually increase calcium hardness. Best results need regular testing and weekly application.

HTH 52031 Pool Shock Treatment - Cal Hypo Chlorine Booster, Fast-Acting Sanitizer & Clarifier for Crystal Clear Water, 13.3oz

SpaGuard Enhanced Shock 2 lb - Multipurpose Chlorine Shock for Spas, Hot Tubs: Clarifies, Flocculates, pH Buffer, Odor Remover

SpaGuard Enhanced Shock is a 2 lb multipurpose chlorine product that shocks, clarifies, flocculates, and buffers pH in spas. Its fast-acting formula restores water sparkle and removes odors in 15 minutes, making it ideal for owners of chlorinated, brominated, ozone, or ionized hot tubs.

• Restores crystal-clear sparkle to spa water quickly
• Eliminates unpleasant odors in just 15 minutes
• 4-in-1 formula shocks, clarifies, flocculates, and buffers pH
• Works seamlessly with chlorine, bromine, ozone, or ionization systems
• Fast-dissolving for immediate treatment results

Versatile compatibility across all major spa sanitization types. Rapid 15-minute action for quick water restoration. Multifunctional design simplifies spa maintenance.

Strong chlorine odor during application requires ventilation. Requires careful handling as a concentrated chemical. May need repeated use in heavily contaminated spas.

SpaGuard Enhanced Shock 2 lb - Multipurpose Chlorine Shock for Spas, Hot Tubs: Clarifies, Flocculates, pH Buffer, Odor Remover

Clorox Pool&Spa Algaecide: Fast-Acting Green Algae Killer & Preventer, Non-Foaming, 1 Quart for All Pools

Clorox Pool&Spa Swimming Pool Algaecide is a fast-acting, non-foaming formula that kills and prevents green pool algae. Pool owners with saltwater or any pool type needing quick algae control and clear water should buy it.

• Eliminates green algae fast for crystal-clear pool water
• Prevents future algae growth with effective weekly protection
• Non-foaming formula ensures no bubbles or residue in your pool
• Compatible with all pool types, including saltwater systems
• Supports regular maintenance for algae-free swimming all season

Rapidly treats and prevents green algae. Works seamlessly in saltwater and all pools. Non-foaming for hassle-free use.

Best results require weekly brushing and water testing. Primarily targets green algae, may need supplements for other types. Ongoing maintenance product, not a one-time fix.

Clorox Pool&Spa Algaecide: Fast-Acting Green Algae Killer & Preventer, Non-Foaming, 1 Quart for All Pools

Clorox Pool&Spa pH Up Granular Increaser - Raises Pool pH, Prevents Eye/Skin Irritation, Protects Equipment, 4LB

Clorox Pool&Spa pH Up is a granular product that raises low pH levels in swimming pools to ideal ranges. It excels at preventing eye and skin irritation while protecting pool equipment from corrosion, making it essential for pool owners seeking balanced, comfortable water.

• Raises low pH quickly to restore ideal water balance
• Prevents dry itchy skin and red burning eyes for swimmer comfort
• Shields pool equipment and surfaces from corrosion, scale, and stains
• Extends equipment life and reduces maintenance time
• Supports weekly pool balancing routine for consistently clear water

Effectively elevates pH to prevent swimmer irritation. Protects pool surfaces and gear from damage. Improves overall water quality and comfort.

Requires accurate weekly testing to avoid over-correction. Granular form needs proper dissolving for even distribution. Multiple doses may be needed for severely imbalanced water.

Clorox Pool&Spa pH Up Granular Increaser - Raises Pool pH, Prevents Eye/Skin Irritation, Protects Equipment, 4LB

InTheSwim 68% Cal-Hypo Pool Shock Granules - Fast-Acting Chlorine Sanitizer for Crystal Clear Water, Bacteria & Algae Killer - 12x1lb Bags

InTheSwim Pool Shock is a 68% calcium hypochlorite granular sanitizer that provides fast-acting defense against bacteria, algae, and microorganisms for crystal clear pool water. Pool owners with above-ground, in-ground pools, spas, or hot tubs should buy it for effective weekly maintenance at 1 pound per 10,000 gallons.

• Delivers fast-acting shock to eliminate algae, bacteria, and microorganisms for sparkling clear water
• 68% available chlorine powers superior sanitization and routine pool maintenance
• Versatile formula works in above-ground pools, in-ground pools, spas, and hot tubs
• Easy weekly dosing of 1 pound per 10,000 gallons maintains ideal 5-10 ppm chlorine levels
• Pre-dissolve application prevents liner damage while ensuring even distribution

Fast-acting non-stabilized chlorine for immediate sanitization. High 68% chlorine content outperforms weaker shocks. Suitable for multiple pool types including spas and hot tubs.

Requires pre-dissolving to avoid potential liner bleaching. May increase calcium hardness with repeated use. Non-stabilized formula burns off quicker in direct sunlight.

InTheSwim 68% Cal-Hypo Pool Shock Granules - Fast-Acting Chlorine Sanitizer for Crystal Clear Water, Bacteria & Algae Killer - 12x1lb Bags

Doheny's Super Pool Shock 68% Cal Hypo Granules - Fast-Acting Chlorine Shock Kills Algae & Bacteria, 24x1lb Bags, USA Made

Doheny's Super Pool Shock is a 68% calcium hypochlorite granular chlorine treatment that quickly dissolves to boost chlorine levels and destroy algae, bacteria, and contaminants. Pool owners needing a powerful primary shock for weekly maintenance or heavy algae blooms should buy this fast-acting, pro-grade formula.

• Instantly boosts chlorine for crystal-clear water by eliminating algae and bacteria
• Quick-dissolving granules ensure fast action without clumping or residue
• Pro-grade 68% calcium hypochlorite delivers maximum sanitizing power
• Pre-measured 1lb bags simplify dosing at 1lb per 10,000 gallons
• Ideal primary shock for concrete pools, perfect for weekly use or spring openings

Rapidly kills contaminants leaving pool water sparkling clear. Convenient pre-portioned bags for easy, mess-free application. High 65% available chlorine potency for effective long-term maintenance.

Calcium hypochlorite may raise pool calcium hardness over time. Requires pre-dissolving before adding to avoid undissolved granules. Not ideal for vinyl, fiberglass, or colored plaster pools.

Doheny's Super Pool Shock 68% Cal Hypo Granules - Fast-Acting Chlorine Shock Kills Algae & Bacteria, 24x1lb Bags, USA Made

CPDI Champion 4-Pack 12.5% Liquid Pool Shock Chlorine - 1 Gallon Sodium Hypochlorite Sanitizer, Fast-Acting, Non-Staining for Crystal Clear Pools

CPDI Champion 4-Pack delivers 12.5% sodium hypochlorite liquid chlorinator in convenient 1-gallon jugs for swimming pools. Its fast-acting, ready-to-use formula sanitizes quickly without staining or scaling, perfect for pool owners wanting commercial-grade clarity and ease.

• Achieve swim-ready crystal-clear water in record time with potent 12.5% sodium hypochlorite
• Prevent stains, cloudiness, and scaling for a pristine pool surface every time
• Pour directly with no mixing required for effortless daily sanitization
• Cut maintenance costs with superior cleaning power at a fraction of pricier options
• Trust NSF/ANSI 60 certified safety for reliable use in residential or commercial pools

Rapid sanitation restores pool clarity fast. Non-staining formula keeps surfaces flawless. Ready-to-use eliminates prep hassle.

Liquid form requires secure storage to preserve potency. Heavier jugs may be cumbersome for some users. Shorter shelf life compared to stabilized tablets.

CPDI Champion 4-Pack 12.5% Liquid Pool Shock Chlorine - 1 Gallon Sodium Hypochlorite Sanitizer, Fast-Acting, Non-Staining for Crystal Clear Pools

Clorox Pool&Spa XtraBlue 1-Inch Chlorinating Tablets 5 LB - Kills Bacteria, Stops Algae for Small Pools

Clorox Pool&Spa XtraBlue 1-inch chlorinating tablets deliver stabilized chlorine that kills bacteria and prevents all types of algae in small pools. Their conditioners create silky smooth water, making them ideal for owners of vinyl, plaster, fiberglass, or tile pools needing weekly maintenance.

• Kills bacteria and prevents green, mustard, black algae for pristine pool water
• Long-lasting sunlight protection extends chlorine effectiveness
• Conditioners deliver silky smooth, comfortable swimming water
• Prevents equipment corrosion, stains, and scale buildup
• Safe for vinyl, plaster, fiberglass, and tile pool surfaces

Highly effective at killing bacteria and stopping algae growth. Stabilized formula resists UV breakdown for consistent sanitation. Enhances water feel with built-in conditioners.

Optimized for small pools, may require more for larger ones. Demands weekly water testing to maintain optimal levels. Requires a compatible feeder, skimmer, or floater for use.

Clorox Pool&Spa XtraBlue 1-Inch Chlorinating Tablets 5 LB - Kills Bacteria, Stops Algae for Small Pools

GLB Super Blue Pool Clarifier 64 oz - Fast-Acting Concentrated Formula Clears Cloudy Water, 1 oz Treats 5,000 Gallons

GLB Super Blue Pool Clarifier is a thick, concentrated formula that rapidly clears cloudy pool water without altering pH or other chemicals. Pool owners dealing with hazy water should buy it for quick clarity and compatibility with all filter types.

• Delivers crystal clear pool water fast without disrupting pH balance
• Ultra-concentrated: just 1 oz treats 5,000 gallons for efficient use
• Prevents future hazy appearances for lasting pool perfection
• Performs reliably across varying temperatures and chemical levels
• Safe for all filter types with zero risk of clogging

Rapidly clears cloudy water. Compatible with every filter type. Maintains chemical balance.

Packaging may vary. Requires manual application. Best results with regular filtration.

GLB Super Blue Pool Clarifier 64 oz - Fast-Acting Concentrated Formula Clears Cloudy Water, 1 oz Treats 5,000 Gallons

Clorox Pool&Spa Chlorine Stabilizer 4LB - UV Protection Makes Chlorine Last Longer, Saltwater Pool Compatible

Clorox Pool&Spa Chlorine Stabilizer is a 4LB formula that shields pool chlorine from UV rays to extend its effectiveness. Pool owners with saltwater or traditional pools should buy it to minimize maintenance and protect equipment.

• Prolongs chlorine life by blocking harmful UV rays for consistent sanitation
• Minimizes sunlight's chlorine burn-off to cut down on frequent dosing
• Perfectly suited for saltwater pools to safeguard salt cell-generated chlorine
• Prevents corrosive damage to pool surfaces and equipment
• Simplifies maintenance for clearer, safer swimming water

Effectively extends chlorine duration in sunny conditions. Compatible with saltwater systems for versatile use. Helps maintain balanced water to avoid irritation and damage.

Requires weekly water testing for optimal results. Does not sanitize on its own, must pair with chlorine. Dosage varies by pool size and conditions.

Clorox Pool&Spa Chlorine Stabilizer 4LB - UV Protection Makes Chlorine Last Longer, Saltwater Pool Compatible