PoolBondall’s Hydrochloric Acid has a number of uses, however one of the most popular is to lower pH in pool water.

The pH of a pool should be tested weekly.

The recommended range is between 7.2 and 7.6. When the pH is higher than 7.6, it can be corrected by adding Bondall’s Hydrochloric Acid as shown below:

Approximate amounts of Hydrochloric Acid used if pH is high

Volume of
Pool Water


pH Grading
7.2 – 7.6



10,000 lt

30,000 lt

50,000 lt

100,000 lt

No acid required

No acid required

No acid required

No acid required



No acid required




1.1 lt




1.8 lt

SAFETY: Use no more than 500ml at any one time and never add Hydrochloric Acid when people are in the pool

Safety instructions when using Bondall’s Hydrochloric Acid in swimming pools

When adding Hydrochloric Acid ensure it is mixed thoroughly with water. It is important to always add acid to water, never add water to acid.
Ensure the mixed hydrochloric acid is added to the surface of the pool water.
Allow between 2 and 3 hours for it to mix with the filter running, then measure the pH again. Then minor adjustments can be made as necessary.
Storage – Store Bondall’s Hydrochloric Acid in an upright and secure position in a cool, well ventilated place. Ensuring it is kept out of reach of children.
Do not allow Hydrochloric Acid to come in to contact with any other chemicals or substrates.
Avoid contact with skin or eyes, avoid breathing vapours, wear suitable protective clothing, gloves and eye / face protection when using this product.

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