Scale Inhibitor & Alkalinity Builder for Softened or Hard Water 6303


Available in cases of 4 x 5kg jars

Can be dosed using an Accepta Ultra Feeder Board

Description below


ACCEPTA 6303 Polymer Alkalinity Builder

Accepta 6303 is a Solid form, low-level phosphate-polymer & alkalinity builder boiler water treatment for SOFTENED or HARD* water make-up application.

* < 20 ppm total hardness in feedwater

Accepta 6303 contains only ingredients approved under the United States Food & Drug Administration Regulations Title 21, Section 173.310 Boiler Water Additives.


Accepta 6303 should be dosed at 40 ppm, 1kg of product treats approximately 25,000kg of boiler blowdown.  1 case (20kg) is equivalent to 115 litres of a conventional liquid product. Liquid equivalent comparative values will vary, dependent upon concentration.

Testing In Boiler Water
Total Phosphate (PO4)* 6 – 12 ppm
p-Alkalinity 250 – 600 ppm
Conductivity See Manufacturer’s Guidelines

*Note: Total Phosphate is used for ease-of-testing.  If make-up water contains PO4, adjust/lower control limits to compensate for this interference


Appearance:                 Solid – White/off white to Tan

Odour:                         mild

pH:                               ~ 11.8  @1%


Accepta 6303 should be kept away from acids and oxidising agents in a cool dry area.  Properly stored, the product will remain effective for 24 – 36 months.  Consult Safety Data Sheet for further information


Accepta 6303 comes in cases of 4 x 5kg Bottles


Feed Accepta 6303 using an Accepta board system.

Available in three types:

  • Gravity Fed – No pump needed, requires controller relay or timer
  • Electronic Level Control – Pump needed
  • Mechanical – Pump needed

It is always advisable to carry out a ‘Control Of Substances Hazardous to Health’ (COSHH) assessment before use.

For further technical assistance concerning Accepta 6303 please contact Accepta.

Safety, Storage & Handling

For full details concerning safety precautions, storage and handling procedures for this product please refer to the latest Safety Data Sheet. To request the latest MSDS for this product please fill out the form below.

    Additional information

    Weight 25 kg