Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

P

Pools Plus More

Products

Products

Pools Plus More

Leisure Time Calcium Booster

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$17.99

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shop is the next step on our mission to make commerce better for everyone.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

One time purchase

$17.99

Subscribe & save

Save 5%

$17.09$17.99

Delivers every month

Description

Leisure Time Calcium Booster raises water hardness level while preventing foaming and equipment corrosion. Using this product to maintain proper hardness levels will help extend the life of your spa. Calcium Booster will optimize your total...

Delivery & Returns

P

Pools Plus More

More from Pools Plus More

Leisure Time Alkalinity Increaser

Leisure Time Replenish

Poolife Calcium Plus

Poolife Turbo Shock (1 lb Bags)

(1)

Poolife Stabilizer & Conditioner

FROG @Ease In-Line Sanitizing System kit with 1 Mineral Cartridge and 3 SmartChlor Cartridges for hot tubs

FROG® @Ease® in-Line Mineral Cartridge + 3 in-Line SmartChlor Cartridges for Hot Tubs

(1)

FROG® @Ease® in-Line SmartChlor® Cartridge 3 Pack for Hot Tubs

(1)

Poolife Turbo Shock 25 lb

E-Z POOL all-in-one pool water care container available at Pools Plus More.

E-Z Pool

Bioguard Lo' N Slo (8 lb)

FROG® Maintain™ Shock 12 Pack non-chlorine spa shock treatment

FROG® Maintain™ (12 pack)

SpaPure pH Up (1 lb)

Related to Pools Plus More

Leisure Time Inc.

Exclusive offer available

Caldera 77588 Spa Pillow (Light Grey) - Leisure Time Inc.

Caldera 77588 Spa Pillow (Light Grey)

(78)

Hot Spring Hot Spot Acrylic 76113 Spa Pillow (Grey) - Leisure Time Inc.

Hot Spring Hot Spot Acrylic 76113 Spa Pillow (Grey)

(24)

Hot Spring Limelight 78160 Spa Pillow (Grey) - Leisure Time Inc.

Hot Spring Limelight 78160 Spa Pillow (Grey)

(20)

Hot Spring Hot Spot 78909 Spa Pillow (Grey) - Leisure Time Inc.

Hot Spring Hot Spot 78909 Spa Pillow (Grey)

(14)

Caldera 77531 Spa Pillow (Grey) - Leisure Time Inc.

Caldera 77531 Spa Pillow (Grey)

(15)

Artesian Spas Pillow 26-0601-85 South Seas Lounge

(11)

FROG® @ease Replacement Cartridge 3-Pack | Bullfrog Spas

(11)

Caldera 77536 Spa Pillow (Grey) - Leisure Time Inc.

Caldera 77536 Spa Pillow (Grey)

(14)

FreshWater 5-Way Test Strips | Hot Tub Water Testing

(15)

FreshWater Ag+ Silver Ion Sanitizer | Hot Tub

(5)

FROG® @ease SmartChlor 3-Pack | Sundance Spas 780/880/980

(7)

Watkins Wellness Spa Frog Cartridge Holder - Leisure Time Inc.

Watkins Wellness Spa Frog Cartridge Holder 74500

(43)

Uproot Clean

Exclusive offer available

Uproot Washing Machine Cleaner

(1.6K)

13% off

Uproot Washing Machine Cleaner Pro

(2.4K)

Uproot Washing Machine Cleaner

(400)

Uproot Washing Machine Cleaner

(71)

Uproot Dryer Sheets for Pet Owners - Summer Wisteria

(179)

Uproot™ Laundry Cycle Pro

(16)

47% off

Uproot Clean Glove™

(245)

Uproot Clean Laundry Detergent Sheets

(92)

Uproot Washing Machine Cleaner

(9)

15% off

Uproot Cleaner Pro™

(2.3K)

40% off

Uproot Pet Grooming Kit

(906)

42% off

Effective Fur-Free Starter Kit- Uproot Mini, Pro & Xtra

(1.1K)

BlindsMagic

4.1

(35)

BlindsMagic 100% blackout cellular shades in a family living room, child-safe cordless design.

Motorized Cellular Shades — 100% Blackout | BlindsMagic

(4)

BlindsMagic Motorized Outdoor Shade Sunscreen – Smart Electric Blinds Patio Alexa Control Ocean View

Motorized Outdoor Shades Sunscreen – Waterproof & Smart Home | BlindsMagic

(1)

BlindsMagic Motorized Bamboo Shades Naturl smart home living room – bamboo shades

Motorized Bamboo Blinds Naturl — 70% Blackout | BlindsMagic

BlindsMagic Smart Motorized Roller Shades 60% Blackout Klamath – Cordless Child Safe Custom Size Bedroom

Motorized Roller Shades Klamath — 50% Blackout | BlindsMagic

(3)

BlindsMagic smart motorized cellular shades providing automated light control in a living room.

Day and Night Motorized Cellular Shades — Blackout & Light Filtering | BlindsMagic

(3)

BlindsMagic Smart Motorized Roller Shades 70% Blackout Whimsy – Voice Control Smart Home

Motorized Roller Shades Whimsy — 65% Blackout | BlindsMagic

BlindsMagic motorized roller shades 100% blackout Torrance smart home bedroom

Motorized Roller Shades Torrance — 100% Blackout | BlindsMagic

(3)

BlindsMagic motorized roller shades 100% blackout Whimsy smart home living room-Whimsy

Motorized Roller Shades Whimsy — 100% Blackout | BlindsMagic

(4)

BlindsMagic Smart Motorized Zebra Shades 80% Blackout Linen – Voice Control Smart Home Bedroom

Motorized Zebra Shades Linen — 80% Blackout | BlindsMagic

(1)

BlindsMagic light filtering motorized cellular shades in a bright bedroom, smart home compatible.

Motorized Cellular Shades — Light Filtering | BlindsMagic

(2)

BlindsMagic Motorized Bamboo Shades 50% Blackout Stria – Smart Electric Blinds Living Room App Remote Control

Motorized Bamboo Blinds Shades Stria — 50% Blackout | BlindsMagic

BlindsMagic SmartShade Pro 6 Channel and 16 Channel Remote Controls for Roller Shades

SmartShade Pro 6/16 Remote

Solar Pool Supply

4.8

(1.1K)

Hose Clamp, Stainless Steel

(7)

Heavy-Duty Connector Hose, 3.5" Premium Rubber Coupling

(36)

10% off

Hold-Down Strap Bracket Assembly, Base & Cap

(2)

9% off

SwimEasy High-Performance Solar Pool Heater Panel Replacement - Highest Performing Design - 15-20 Year Life Expectancy (Includes 4 Heavy-Duty Rubber Hose Connectors)

(68)

25% off

GeoBubble EnergyGuard™ Award-Winning Solar Pool Cover - The Best Cover For Heating While Inhibiting Algae

(97)

[Custom Size] GeoBubble Sol+Guard™ High Performance Pool Cover

(5)

[Standard Roll] GeoBubble RaeGuard™ Pool Cover

Heavy-Duty Connector Hose, 2.5" Premium Rubber Coupling

(2)

Pipe Connector, CPVC

(8)

Heavy-Duty Mounting Bracket For Solar Pool Heater Panels With Round Headers

(5)

24% off

SwimEasy High-Performance DIY Solar Pool Heater Kit - 15-20 Year Life Expectancy - Ultimate Combination of Performance & Durability

(62)

$869.99$1,137.99

Lag Screw, 18-8 Stainless, Hex Head, 1/4"-10

Discover top brands

Exclusive offer available

The GLD Shop

4.7 (169.9K)

Little Sleepies

Exclusive offer available

Little Sleepies

4.9 (403.6K)

Aviator Nation

Exclusive offer available

Aviator Nation

4.5 (93.5K)

Fashion Nova

4.3 (428.9K)

Culture Kings US

Culture Kings US

Culture Kings US

4.7 (148.7K)

Mandala Scrubs

Exclusive offer available

Mandala Scrubs

4.6 (11.4K)

OOFOS

Exclusive offer available

OOFOS

4.5 (178.3K)

Exclusive offer available

Revice

4.5 (8.8K)

Rockstar Original

Rockstar Original

Exclusive offer available

Rockstar Original

4.6 (186.7K)

32 Degrees

4.7 (228K)