Changes

Counterpoise lift

12 bytes removed, 02:19, 24 September 2013

no edit summary

The ''pi cottah'', used primarily in India, is similar to the shaduf but is operated by two people, one of whom acts as a moving counter weight to eliminate much of the strenuous work of returning the water container against a stationary counter weight. Although it can lift water 5-8 m (16-26 ft), its output is small, and it is used primarily to water small vegetable plots.

Bucket systems may also be adapted to animal power to increase flow, such as with the [[Bucket_hoistsBucket hoists,_WindlassesWindlasses,_Mohtes_and_Water_Skipsand Mohtes|''mohte'']], or self-emptying bucket. This traditional device employs either a tipping action or simple flap valves in the bucket or bag to discharge the water at lifts of 5-10 m (16-33 ft). The system can be arranged for the animal to walk back and forth in a straight line or in a circle, thus requiring less supervision.

The low-lift ''dhone'', or see-sawing gutters from Bangladesh, can deliver about 300 liters/min (80 gal/min) at a 1 m (3.3 ft) lift. This device uses flap valves and can be operated by a single person shifting the weight back and forth at the fulcrum.

• ← Older edit
• Newer edit →

Winona

Akvopedia-spade, akvouser, bureaucrat, emailconfirmed, staff, susana-working-group-1, susana-working-group-10, susana-working-group-11, susana-working-group-12, susana-working-group-2, susana-working-group-3, susana-working-group-4, susana-working-group-5, susana-working-group-6, susana-working-group-7, susana-working-group-8, susana-working-group-9, susana-working-group-susana-member, administrator, widget editor

30,949

edits