|
Before we lined the main pond we worked
on the watercourse. We used a thick butyl liner with an underlay to
minimise the risk of puncture from unlderlying stones. We dug out the
watercourse in a series of stages, each pool being 10 to 15cm deep with
the front edge deeper than the rear. |
|
We used large rocks to make a deeper
channel for the water course and build stone weirs at the front edge of
each stage. These would slow down the water flow and allow pools to
form behind them. |
|
The liner was curled up the edges of the
rock channel and backfilled with gravel. Smaller stones were then used
to hide the liner and provide extra feature in the small pools of the
water course. |
|
Finally the botton of the pools were
covered with course gravel. Crevices and gaps in the rocks were
identified for planting with ferns and other suitable, moisture loving
plants. |
|
The water course is complete, except for the water. The water
will be pumped up from the pond, via a burried, flexible pipe. into the
top pool to give the impression of a spring similar to a natural spring
in our neighbouring field.
The pump we chose to use was a Laguna PowerJet 7000 (max 8400
litres per hour; max head 3.30m).
|