Clorox Pool & Spa Calcium Hardness Increaser

Clorox Pool&Spa Calcium Hardness Increaser raises low Total Hardness levels in your swimming pool that can cause damage to your pool surface. Ideal for plaster pools & soft water areas. Use Clorox Pool&Spa Calcium Hardness Increaser to raise total hardness levels in your pool that are below 175 ppm. Increasing Total Hardness in your pool prevents surface damage like corrosion, staining, and etching. Ideal for plaster pools and soft water areas. 5 lbs. per 10,000 gallons will raise increase your Total Hardness levels by 50 ppm. Most DIY pool owners Once a week, start your routine by testing your pool water with test strips or a liquid test kit. Based on the results, apply necessary product including a sanitizer, shock and balancers. As long as you routinely give your pool the chemicals it needs, you’ll be able to enjoy it all season long.

Order Processing: After your payment is authorized and verified, we will start processing your order and this process can take from 1 to 2 business days, so please be patient with us. If we are unable to process your order due to inaccurate or incomplete payment or incorrect address information, your order processing may be delayed.

Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

FREE RETURNS on all orders!
The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.