Quick Reference Table

PROBLEM COTEY PRODUCT
Algae Welgicide Cleaner
Animals in well Welgicide Cleaner
Bacterial "Slime"
  • Hard water areas - with galvanized parts
  • Hard water areas - without galvanized parts
  • Soft water areas - with galvanized parts
  • Soft water areas - without galvanized parts
  1. Dry Acid Special & BioClean
  2. Liquid Descaler
  3. Dry Acid Special & BioClean
  4. Welgicide Cleaner
Calcium carbonate scale (calcite)
  • With galvanized parts
  • Without galvanized parts
  1. Dry Acid Special
  2. Liquid Descaler
Calcium sulfate scale (gypsum) Liquid Descaler
Coliform bacteria-free swimming in water
  • Encapsulated in slime - with galvanized parts
  • Encapsulated in slime - without galvanized parts
 Wel-Chlor PLUS
  1. Dry Acid Special & BioClean
  2. Liquid Descaler
Iron scale (iron oxide)
  • With galvanized parts
  • Without galvanized parts
  1. Dry Acid Special
  2. Liquid Descaler
Mud-cake Dry Acid or Mud-Nox
Oil film (drip oil from oil-lubricated turbine pump) Mud-Nox
Oil slime (bacteria "feeding off" drip oil) Welgicide Cleaner
Old inactive well
  • Hard water areas - without bacterial slime - with galvanized parts
  • Hard water areas - without bacterial slime - without galvanized parts
  • Hard water areas - with bacterial slime - with galvanized parts
  • Soft water areas - with bacterial slime - without galvanized parts
  1. Dry Acid Special
  2. Liquid Descaler
  3. Dry Acid Special & BioClean
  4. Welgicide Cleaner
Rust & corrosion deposits
  • With galvanized parts
  • Without galvanized parts
  1. Dry Acid Special
  2. Liquid Descaler
Silting of well Dry Acid
Sterilizing well Wel-ChlorPLUS
Sulfate-reducing bacteria
  1. With galvanized parts
  2. Without galvanized parts
  1. Dry Acid Special & BioClean
  2. Liquid Descaler
Vegetation in well (e.g., small "hairy" tree roots) Welgicide Cleaner