pH Down™


pH Down™ is an additive designed for use when you need to lower the pH into a more acidic range.

The organic acid present in pH Down™ gently lowers the pH of water, making nutrients more available and increasing uptake. Additionally, unlike other hazardous pH lowering agents, pH Down™ is safe to handle and is suitable for use in organic food production.

Along with lowering pH levels, pH Down™ has several other functions: compatibility agent, acidifier, activator, and chelator.

All of that from an organic based product that is natural and environmentally friendly.


pH reducer solution
Corrects hard water, prevents precipitation with Ca, Mg, etc.
Helps prevent clogging of equipment
Removes scale and hard water deposits
Compatibility agent
Biological activator
Increases the availability of nutrients
Certified organic

Package sizes:

1 pint concentrate
1 quart concentrate
1 gallon concentrate

cdfa omri for organic gardening


Shake well before use.

Storage and Disposal:

Store in a cool, dry place. Dispose of properly.

CAUTION: pH Down® is an acidic material and can cause eye and skin irritation. Always wear eye protection and gloves when mixing. In case of contact with eyes, flush immediately with water.

More Info:

Safety Data Sheet (requires PDF reader)

Download the Informational Flyer