CWS, Ultra or Sack Frame?

If you're unsure whether to use the CWS, Ultra or Sack Frames, we've put together this explainer guide to help...

​CWS	CWS Ultra	Single/Double Sack Frame
Requires 110V / 16amp Power	Requires 110V / 16amp Power	No Power required (unless using submersible pump)
Indefinite recycle of wash water	Indefinite recycle of wash water	Immediate discharge
Manual pH correction required at end of use	pH controlled ( by CO2) automatically throughout	Manual pH correction required throughout
Uses water from CWS	Uses water from Ultra	Uses water from truck

CWS Concrete Washout

All solids are retained in the Adsorption Sack, each sack will take up to 50wash offs. The CWS will recycle washwater indefinitely without needing to be emptied.

For pH correction this system requires manual adding of 2-4drums pH neutraliser. System requires 110V Power supply.

CWS Ultra - Auto pH Control

Double or Single Sack Frame

All solids are retained in the Adsorption Sack, each sack will take up to 50wash offs.

These systems require manual adding of reducer in 50ml doses, mixing/agitation & checking pH in between each additional dose until desired pH is achieved.

Double Sack Frames provide the added benefit of no downtime as the system has 2no sacks, allowing you to continue washing into 1 sack whilst replacing the other. Also a larger water capacity allows for less frequent pH treatment.

Bulk discounts available on Adsorption Sacks:

If you're still unsure or need any additional info, please give us a call +44 (0)1889 508944.