Lavasol 5 – 55 Gallon Drum



Lavasol™ 5 is a low pH (acidic), low foaming liquid cleaner devised to remove silica and other inorganic scales present on polyamide thin-film composite, cellulose acetate or ultrafiltration membranes. Silica is inherently difficult to remove, but Lavasol™ 5 was specifically formulated to target and remove tough silica scale, while helping remove other inorganic scales present. For systems where predominate inorganic scale is not silica, it is best to use a broad spectrum low pH cleaner (Lavasol™ 1 or OptiClean™ A) prior to Lavasol™ 5. For a comparable powder cleaner, try OptiClean™ S.


  • Extremely effective silica specific cleaner
  • Phosphate-free formula to reduce negative impact on the environment
  • Can be mixed with other low-pH cleaners such as OptiClean™ A or Lavasol™ 1 for a multifunction cleaning
  • Buffered pH to maintain optimum cleaning performance throughout cleaning cycle
  • Proven to efficiently remove silica scale


  • For use on reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF) and micro-filtration (MF) membranes
  • For effective removal of silica fouling from polyamide membrane elements
  • When simple alkaline cleaning does not produce a clean membrane surface Lavasol™ 5 should be applied
  • Will also dissolve inorganic scales as Lavasol™ 5 is an acidic formulation
APPEARANCE:  Pale yellow liquid
PH (2% SOLUTION):   3.50 – 4.00

Additional information

Weight 52 lbs
Dimensions 11 × 10 × 14 in