An Undershot Water Wheel

Water your garden from a nearby stream with a paddle wheel pump system that you can build and install yourself.



waterwheel on swinging carriage
To withstand the force of high water, the wheel is mounted to a swinging carriage, which in turn is suspended from a pipe framework partly supported by a diagonal guy wire.
PHOTO: RICHARD N. MCCRAY
aluminum paddle template
Once the ideal size and shape of the paddles were established, a sheet-aluminum template was used to assure consistency.
RICHARD N. MCCRAY
muddy creek
This unassuming creek supplies the power for the wheel, and water for the garden.
RICHARD N. MCCRAY
mounting paddles to wheel
The paddles were mounted to the iron wheel with U-bolts and small aluminum bridges.
RICHARD N. MCCRAY
PVC pipe pump
The PVC-pipe pump mounted to its swivel bracket. The intake hose with its foot valve is on the left, and the T's right arm delivers pressurized water.
RICHARD N. MCCRAY
man working on waterwheel
The author tightens the end collar on the completed wheel's axle shaft. The hub, crank, and axle assembly all spin as one within two oaken bearings.
RICHARD N. MCCRAY
082-140-03
The complete water wheel parts and assembly diagram.
RICHARD N. MCCRAY











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