How to Acidize the Points of a Water Well

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Know how to properly handle acidic compounds before attempting to use them.
Know how to properly handle acidic compounds before attempting to use them. (Image: PhotoObjects.net/PhotoObjects.net/Getty Images)

When water wells cease to function properly, it may be necessary to acidize. The addition of acids into a well will stimulate productivity by breaking down and removing mineral deposits that may be impeding the well's proper operation. A variety of acids may be used to correct the process, depending on the materials used to construct the well. The acid is pumped into the well's bore under pressure to effect a chemical reaction with the rock to enlarge the existing points, or to create new chambers within the well.

Things You'll Need

  • Safety goggles
  • Gloves appropriate for resisting chemical spills
  • Protective clothing
  • Pump
  • Site-appropriate acid
  • Clean water (in case of accidental splash in the eyes)

Preparations

Determine the materials used to construct your well. This includes the casing and the screen. This will dictate what type of acid should be used.

Know if your well is constructed of stone, plastic or some other material.
Know if your well is constructed of stone, plastic or some other material. (Image: George Marks/Retrofile/Getty Images)

Determine the type of buildup that is preventing proper well operation. This may involve contacting well professionals in your area as well problems tend to stem from many of the same causes in areas with the same soil types and water source.

Sulfur buildup in wells is prevalent in some areas of the country.
Sulfur buildup in wells is prevalent in some areas of the country. (Image: Jupiterimages/Photos.com/Getty Images)

Select an acid appropriate for your well. This could be hydrochloric acid, sulfamic acid, glycolic acid or phosphoric acid. Each type will correct a specific problem and each has unique caustic properties. Know what acid you need before obtaining any.

Acids containing phosphorous can be harmful to downstream ecosystems if spilled.
Acids containing phosphorous can be harmful to downstream ecosystems if spilled. (Image: Jupiterimages/Photos.com/Getty Images)

Acidizing the Well

Gather all personal protective equipment and clean water. Wear equipment at all times when handling acid.

Pump acid into the well. If using a concentrate, prepare solution first by adding the acid to the water. Allow adequate time for acid to dissolve minerals and blockages.

Make sure to use an appropriately-sized pump for the volume of solution to be applied.
Make sure to use an appropriately-sized pump for the volume of solution to be applied. (Image: Zedcor Wholly Owned/PhotoObjects.net/Getty Images)

Remove water from well in cases of extreme blockage by pumping out acidified water. Reapply acid and remove again as needed.

This process can be done as often as is needed.
This process can be done as often as is needed. (Image: Hemera Technologies/PhotoObjects.net/Getty Images)

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