Asian Phoenix Resources PowerPal MHG-1000LH Handbuch für Gebrauch und Pflege - Seite 7

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The flow rate is also much more stable than a waterfall set up. Disadvantages are the

flooding of an area to make the lake, a land area that might be used otherwise. The

more incised the stream, the smaller the lake.

3. Side Channel

This is an alternative to a dam and has the advantage of being simpler to construct

while providing a good degree of stream flow control. It is suitable for incised streams

with soil banks. Dig a trench along the bank parallel to the stream, starting at the

upstream end where water can enter. The trench should follow the contour, i.e. be

almost horizontal. Make the trench long enough so that when you have finished it is

around 1.5 meters above the water surface in the stream below. Excavate this area so

that the water can enter the trench, flow along it and exit back into the stream below.

Some modifications may be required to achieve the required flow rate. Try inclining

the trench floor in a downstream direction, or lining the trench with smooth material

such as a plastic tarpaulin to reduce friction.

SYSTEM INSTALLATION

After locating a suitable site and completing the earthworks (if any), your PowerPal is

ready for installation. To do this:

1. Connect the water intake canal (A) to the water outlet pipe (B). Insert the rubber

seal (C) at the connection point. Bolt the canal and pipe together. Note that the

connections should be airtight or performance will be significantly reduced.

Canal and pipe connection should be airtight.

Simpler than a dam, it is most suitable

for small villages or isolated houses. It

also avoids the worst of flooding as

most of the stream flow will follow the

main stream channel.

PowerPal™ Low Head 7