| 摘要 |
Apparatus for killing unwanted vegetation using heated water comprises a refillable compressed air tank, a refillable water tank, a shut-off valve operably installed on a connection conduit between the compressed air tank and the water tank for select opening and closing of the conduit to respectively allow and prevent flow between the tanks, a flexible hose connected to the water tank, an applicator wand connected to the flexible hose opposite the water tank and comprising a rigid delivery conduit terminating at a discharge end of the applicator wand and a normally closed control valve on the applicator wand to selectively and temporarily open to control discharge of heated water from the water tank under air pressure from the air tank. The apparatus is used to inject heated water beneath a spot of ground surface from which unwanted vegetation has emerged
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