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#16
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Pipe Size
Also note that the same 20 feet of pipe will provide
over 20 sq feet of execlent selfcleaning biological filtration. Just bury most of the pipe below the water level of the lowest pond and you will have no problem. Howard "Rod Farlee" wrote in message ... "BenignVanilla" writes: So 4'' for my bottom drains, skimmer, filter, all runs? Note that 20 feet of 4 inch pipe holds 131 gallons of water. That's as much as three 50 gallon barrel filters typically hold. If this is above the water line of the pond, and if it's a small pond, it'll lower the pond after the pump is turned on. And if power is lost, it'll drain back through the pump and overflow a small pond. |
#17
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Pipe Size
"Paul in Redland" wrote in message
... If you have any idea of the size that of your pond will be, (ball park idea) figure out approximate gallons. You should run about 1/2 of your pond volume through the filter per hour. That will give you an approximate flow rate, then go to http://www.geocities.com/researchtri.../hydrodyn.html to get an idea of the pipe size that should be used for that flow rate. Hope this helps. Paul Thanks! |
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