Helix Pond Design Guide April 14th 2014 | Page 8

CROSS SECTIONS GRANITE BOULDERS Detail A Clean Out Depression – Notice in this cross section detail the Clean Out depression in the bottom of the pond’s floor. If you take the time to create this clean out depression during your excavation, it will make your annual pond clean out more efficient. Once the pond is nearly empty, during your clean out, you would simply move the gravel out of the pocket and place your clean out pump in this depression. By placing your clean out pump in this depression you will have an easier time removing all the dirty water from the pond. 8” 8” ROUND ORNAMENTAL GRAVEL 24” 8” GEOTEXTILE UNDERLAY 45 MIL E.P.D.M CLEAN OUT DEPRESSION Detail B AQUATIC PLANT BOG ( NO VISIBLE WATER ) Static Bog Plant Shelf – This is a great method for naturalizing the edge treatment of your pond. By extending the excavation beyond some of the coping stones you can create Aquatic Planters. Once the aquatic plants are installed you simply add gravel to one inch above level of water. This will give the appearance that the aquatic plants are growing on the outside of the pond but will actually be contained inside the lining of the pond. You never need to water these marginal plants and it makes the pond look extremely natural. GRANITE BOULDERS 4” 4” 8” SMOOTH GRAVEL GEOTEXTILE UNDERLAYMENT 16” 45 MIL E.P.D.M RUBBER LINER WATER LEVEL 8” 8” 8 Detail C AQUATIC PLANT SHELF 8” Aquatic Plant Shelf – When you plan on installing GRANITE BOULDERS ROUND GRAVEL 45 MIL E.D.P.M. UNDERLAYMENT 32” 24” aquatic plants on the inside of the pond, it’s important to provide an adequate sized shelf to support a nice grouping of specimen plants. Notice in Detail A there is not room to support a nice sized specimen plant. When excavating a water garden ecosystem pond we will typically mix these excavation details up in the design.