| 摘要 |
<p>Unit feeds treated water to a swimming pool or reservoir at higher level and consists of a sealed chamber with a gas venting duct. The chamber is divided into two compartments separated by an overflow weir, the upstream one being fed with water and ozone or ozonised air, and downstream one supplying the reservoir. A level sensor monitors liquid level in downstream compartment and is used to control venting of gas to maintain the level, whilst keeping pressure in chamber at least equal to the head loss between it and the reservoir.</p> |
