| 摘要 |
<p>A liquid treatment installation comprises apparatus for controllably treating a liquid with a liquid treatment substance. The apparatus comprises a body, a container for a liquid treatment substance in the body, and a removable closure member on the body. The installation also includes a liquid supply conduit connected to the liquid inlet of the apparatus, a liquid discharge conduit connected to the liquid outlet of the apparatus, and level control means for maintaining the liquid level in the container, thereby to dose liquid passing through the body accurately with liquid treatment substance. <IMAGE></p> |
