Description

Liquid, food grade phosphoric mineral acid effectively removes common mineral deposits (carbonate, iron, manganese, sulfates) found in wells, filter beds, and water system equipment. NSF certified for potable well systems.

A strong liquid acid for use in attacking stubborn mineral scale without risk to stainless steel screens or casings, Descale Safe is a chemically clean acid that won’t harm the well structure. When combined with Bio Dispersant NW-310, Descale Safe offers passivation of corrosion impacted areas, prolonging life of older well completions and protecting pumps and tooling.

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Application When possible, obtain information on construction and performance history and submit water samples for laboratory analysis before application to determine if dosage modifications are warranted.

1. Descale Safe should be mixed into a tank of water and acid equal to 40% of the total treatment volume. Use the dosage table to calculate the recommended dosage for general well cleaning. In wells with over 100 ft of screened intervals, it is recommended to use 1.5 times the treatment volume to account for the filter pack.

2. The mixture should be placed evenly across the well screens. Placement methods should ensure contact with affected regions at the desired concentration. Agitation of the acid into the plugged area will greatly enhance the effectiveness of the cleaning.

3. The acid solution should remain in contact for a period of 12 to 48 hours, depending on the nature of the plugging.

4. Monitor the pH during the during treatment, keep below 3.0 for effective cleaning. If pH level rises above 3.0, add additional acid solution of approximately 20% of original volume. The amount of acid used will depend on the degree of mineral scaling.

5. Discharge the acid solution from the well, neutralize on the surface with Neutralizer NW-600 and dispose in accordance with government regulations.