Zodiac 1L Calcium Down

Zodiac Calcium Down – 1L (WPQCHD1)

Bring high calcium hardness back into balance with Zodiac Calcium Down. Excess calcium in pool water — typically above 400ppm — causes scale to form on pool surfaces, salt cells, heat exchangers, and equipment. Left untreated, calcium scale reduces equipment efficiency, shortens component life, and creates rough, unsightly deposits on pool surfaces. Zodiac Calcium Down lowers calcium hardness quickly and effectively, protecting your pool and equipment investment.

Key Benefits

• Lowers calcium hardness to the recommended range (200–400ppm)
• Prevents calcium scale on pool surfaces, salt cells, and equipment
• Protects heat exchangers, pumps, and plumbing from scale build-up
• Essential for water balance in high-calcium areas
• Easy to use liquid formula

Specifications

• Part Number: WPQCHD1
• Size: 1 litre
• Function: Calcium hardness reducer
• Brand: Zodiac
• Barcode: 9343609024758

Frequently Asked Questions

What is calcium hardness and why does it matter?

Calcium hardness refers to the amount of dissolved calcium in your pool water. The recommended range is 200–400ppm. Below 200ppm, water becomes corrosive and can damage pool surfaces and equipment. Above 400ppm, calcium precipitates out of solution and forms scale on surfaces, salt cells, and heat exchangers.

How do I know if my calcium hardness is too high?

Test your pool water with a calcium hardness test kit or have it tested at a pool shop. Visual signs of high calcium include white crusty deposits on pool surfaces, waterline scale, and reduced efficiency in your salt chlorinator or heat pump.

How much Zodiac Calcium Down do I need?

Dosage depends on your current calcium hardness level and pool volume. Follow the label directions for the correct dose rate. It is best to make adjustments gradually and retest after each treatment.

Can I use Calcium Down in a salt pool?

Yes — Zodiac Calcium Down is suitable for salt and freshwater pools. It is particularly important in salt pools, where high calcium hardness accelerates scale build-up on the salt cell and reduces chlorine output.

Downloads

• Zodiac Calcium Down – Safety Data Sheet (PDF)