![](https://coimages.sciencemuseumgroup.org.uk/39/768/large_thumbnail_1963_0142__0004_.jpg)
Model illustrating super chlorination and dechlorination by chlorine and sulphur dioxide
![Model illustrating super chlorination and dechlorination by](https://coimages.sciencemuseumgroup.org.uk/497/593/medium_smg00155774.jpg)
Model illustrating super chlorination and dechlorination by chlorine and sulphur dioxide ( Wallace and Tiernan pattern, 1921) erected by United Water Softeners Ltd.
Details
- Category:
- Water Supply Metering
- Object Number:
- 1935-304
- type:
- model
- credit:
- Metropolitan Water Board