Spa Calcium Increaser – 1.83 lbs
$8.99
Free shipping for orders over $35
Delivery for NC residents only
Quantity
Description
Natural Chemistry’s Spa Calcium Increaser is used to raise calcium hardness in spa water. Calcium hardness in spa water should be maintained between 150-250 ppm. Low calcium hardness levels could cause the spa water to be corrosive which may result in damage to the spa surface or equipment.
- Raises calcium hardness in spa and hot tub water
- Reduces cloudy water caused by low calcium levels
- Low calcium hardness levels could cause the water to become corrosive, which may result in damage to the spa surface or equipment
FAQ
How fast is shipping?
Orders placed before 12 PM qualify for same-day delivery! All others are delivered the next day. Fast & Local.
Is shipping really free?
Yes—every order includes free local delivery across North Carolina. No minimums, no hidden fees.
Not sure what you need?
That’s what we’re here for. Message us anytime and we’ll help you figure it out based on your pool type, size, and water conditions.
Can I talk to someone if I have questions?
A detailed answer to provide information about your business, build trust with potential customers, or help the visitor with a problem they may be encountering
Can I return or exchange chemicals?
Due to safety and compliance regulations, we cannot accept returns on chemicals. If you’re unsure about what to order, please reach out first—we’re happy to help.
Is this product safe for my pool?
Yes! All our products meet North Carolina safety standards and EPA guidelines. We only carry what we trust.
What payment methods do you accept?
We accept all major credit cards, Klarna, PayPal, and Cash App.
Can you test my pool water?
Yes! We offer free water testing and can recommend the right products based on your results.
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