It is how to make a manual pump appearing in My Neighbor Totoro.
Even if you do not have electricity as it moves with the power of a person, it is OK!
Pumps can be made with materials available at home centers.


material
3" PVC pipe
2" PVC pipe
1/2" PVC pipe

3" Pipe cap
2 1/2" Pipe cap

Cheese 3"× 2"
3" Vertical band
Screw bolt M8 280 mm
Special BOLT M8 x 40
Long nut M8 × 50
M8 bolt, nut, washer, spring washer
Rubber plate