| 摘要 |
<p>A solid chemical feed system, preferably including two feed bowls (14, 16), comprises a quantity of solid chemicals that dissolve upon immersion in wate r to form a liquid solution. A sump (12) is provided to receive liquid solutio n from the feed bowls (14, 16), the liquid solution with additive chemicals being used to inhibit corrosion and rust. The feed system comprises a valve system (46, 54, 56) that is controlled by a sensor (72) that detects the conductivity of the liquid solution to alternatingly switch the introduction of liquid solution from one feed bowl (14) to the other feed bowl (16). Upon depletion of chemical feed in one bowl (14, 16), desired treatment will continue and the empty bowl may be replaced without disruption.</p> |
