Page 8 - Filter, Water and Flow Forms

These cinder blocks are resting on top of the liner on the earth dam that separates the pond from the bio-filter and will act as a porous barrier between the two. The screen butts against the cinder blocks and keeps the lava rock from falling into the pond. The final height of the lava rock bed will reach the top of the cinder blocks.

Water is being added so the liner can be worked well into the crevices and wrinkles/folds can be worked out. It is critical to do this before you cut off the excess and finish the perimeter of the pond.

Note the three flow forms resting on the cinder blocks on top of the liner in the upper portion of this photo. Flow forms are specially designed to make the water that flows through them to move in a figure eight oscillation pattern. This motion acts to revitalize and oxygenate the water. Jennifer Greene made this set of flow forms.