Detailed Product Description

1.     Construction:

There is hollow metallic ball in one end of circular pipe, there have ten different the air mouth of direction on ball. It has install piston in pipe, piston is consists of oilproof rubber, piston-rod reach outer lid and has install handle.

2.     Usage

We screw off hollow ball, cylinder will be submerged in water, lift up piston, may water uptake in lower of cylinder, hollow ball will also be filled up water, and ball will be screwed down cylinder in water, then the whole device will be took out water surface and press down slowly piston, water eject from all direction from orifice of nozzle, it indication: Liquor will able to received intensity of pressure, where pass from all direction.

3.     Attention:

    Will have first arranged for direction where nozzle eject water column, in case water eject on myself of teacher and body of students. After having finished, the device will be knock down to clean, assembly keeping after drying, metallic parts coat a few vaseline against corrosion.