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WTP CS4490 is a fast acting, non-oxidising biocide formulation with a broad spectrum of activity. WTP CS4490 has been developed to control planktonic and sessile micro-organisms which form as biofilms in systems and their pre-treatment systems.

WTP CS4490 is compatible with system components and can be used with other water treatment products as part of a routine treatment and maintenance programme.

Product Benefits

  • Fast acting
  • Broad spectrum of activity
  • Rapid degradation to inactive and harmless by-products 

Product Data

Physical State Solid/granule/powder
pH 2 to 3

All figures are approximate.

Treatment and Dosage Requirements

WTP CS4490 is dosed at 5 – 20 mg/l (for a clean system) and should be circulated for 4 hours.

Half life and retention times must be calculated to accommodate losses.

Legionella Efficacy

DBNPA was effective in preventing recovery of the target organism from the test water.

In an uncompromised environment used in laboratory procedures (0.85 percent saline), DBNPA gave complete inhibition of L. pneumophila at 4 ppm and 2 hour exposure



Please refer to material safety data sheet for detailed handling/storage instructions.
  • Avoid contact with skin, eyes and clothing.
  • After contact with skin wash immediately with plenty of water.
  • In case of contact with eyes rinse immediately with plenty of water and seek medical advice.
  • If swallowed or inhaled obtain medical attention immediately



Field Representatives will work closely with customer personnel to assure the effective application of the water treatment programme. Qualified personnel can provide regular service calls.

More Information

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The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The company shall not be held liable for any damage resulting from handling, contact, mis-use or mis-application of the above product. In all instances the user should satisfy themselves that this product is suitable for the anticipated application and should carry out suitable and sufficient risk/COSHH assessments and a method of use statement.

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