Pond: 10' x 18', with a depth of 52" .
pond, with 3" bottom drains as well as a skimmer.
Filtration: Two 4' diameter barrel filters - up-flow gravel
system. The barrels contain Del Rio river rock and high-density black
foam. Filters are provided with extra aeration via a standpipe drawing
air into the water flow.
Pump: A 1/4 h power Sequence pump operates the two-barrel
filters. The waterfall is run by a 2 speed Dolphin pump using a converted
sand filter. The sand filter is filled with ceramic rock that is lightweight
and easily backwashed. All pumps are rated energy efficient
tank is 7' diameter by 38" deep. All
water circulates into the settling tank that is filled with water plants
and brushes before going into the barrel filters.
Aeration: Additional (besides waterfall) aeration is provided
by a Maruka 621 air pump, that is plumbed to provide air to 4 different