| 摘要 |
<p>The dispenser consists of a refillable external reservoir (1), e.g. of one-litre capacity, with a visual fluid level indicator (2), connected by a tube (3) to a pump housing (6, 7) inside the flushing cistern with a guide tube (8) and float (20). When the cistern empties the float drops, allowing the lower part (7) of the pump housing to fill with disinfectant. As the water level rises the flow of disinfectant is shut off, and the dose of disinfectant is discharged through an outlet tube (19) onto the surface of the water.</p> |
