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Have a 4487 gallon pond with two Lim bottom drains with air domes at 7 ft. 2 inches deep. Pond is 16x6x6.5 ft deep at sidewalls, sloping to the drains at 7 ft. 2 inches. Essentially two 8x6 ft. comparments on the bottom seperated with a ridge running across the 6 ft. width at the middle (8 ft. mark on the length side)with all four sides of each compartment sloping to the drains.
Two 4 inch bottom drain lines coming into a Y with valves just before a Sprirex vortex. Water leaves the vortex and goes through a 1/4 hp Dragon pump into a 4.4 Aquadyne filter. Return is split to the pond with 1/2 going directly back and the other 1/2 going through an Emperor Aquatic HO 80 watt uv.
Maruku 80 running the air domes...jacuzzi time.
Separate 1/15 hp Lim wave pump on a Savio skimmer at the opposite end of the pond from returns.
I empty the vortex and flush the bottom drain lines every 4 days and flush the filter once a week (every 5-6 days....as indicated on the pressure valve. Clean Savio Japanese matting every 2-3 days.
Used both Refresh and Koizyme weekly.
Total time for the week......2-3.5 hrs tops.
Considering TT or shower...just not sure where they would fit....very formal pond with decks on all sides. Would be hard to blend in. Not convinced at this point I need either as water quality is excellent and koi always look great. Guess the old saying applies...it it ain't broke, don't fix it.
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