| 摘要 |
<p>PURPOSE: To tow a float fountain for purification even to a place shallow in the depth of water by attaching the lid part covering the intake port provided to the lower part of a casing to the casing in a freely detachable manner to set the same to an ark state. CONSTITUTION: The flange lids 14 covering a plurality of the intake ports 13 formed to the side surface of the lower part of the casing 12 are provided to the casing 12 in a freely detachable manner. When a float fountain 11 for purification is arranged, the whole of the fountain 11 is set to an ark state by attaching the flange lids 14 and the waterline of the fountain 11 is lowered to the position shown by an imaginary line. By this constitution, the fountain 11 is set to a floating state on water and, even in a shallow basin, the contact of the bottom part thereof with the bottom of the basin can be prevented. Therefore, the fountain can be towed to an arranging position. After the arrival at the arranging position, the flange lids 14 are detached to attach a conduit 15.</p> |
