Types of acids

There are several acids used for treatment, each with its benefits.

Hydrochloric acid (HCl) is the most common form of acid, and it is the cheapest. Other acids are more potent, and may contain nutrients, but are also more dangerous. While some other acids may be less potent.

Of course, stronger acids require lower dosages.

It is imperative that you check that all the materials used in your irrigation system can handle contact with acids.

Acid name Formula Relative strength Danger (hazard) Nutrients provided
Hydrochloric HCl ++ + None
Phosphoric H3PO4 + +/- P
Sulfuric H2SO4 +++ ++ S
Nitric HNO3 +++ +++ N

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