damian said:oops, that was a crosspost.
eta i will take your word for it, since yours works!
koidaddy said:Do you have a pic of the weir? How wide is the opening? As long as the flow from the weir into the pond is greater then the flow from the filter to the weir it should work. Probably twice the size outlet on the weir .
Ok, at 6000 gallons an hour your might have an issue. I am pumping @3500 gallons through mine. Worse case is you install a ball valve into the filter line that you can controll the flow into the filter and tee off the excess into a spray bay or other water feature..damian said:the pond will be 6000 gallons, and i'm targeting recyling once per hour.
damian said:i've included a competely awesome picture i drew to demonstrate my concern.
it seems like with the inlet at the bottom like this, the weight of the water in the weir as it fills would prevent additional water from being received. i.e. the water exiting the doc filter would be fighting against the pressure of the water in the weir and instead overflow the doc filter.
DrDave said:Just one roll, cut in two so it was twice as long, half as wide. I laid them on top of each other and rolled them back up. It does not sit in the 55 gallon drum very concentric, but it does not have to for the aerobic bacteria to do it's job.
damian said:Fluid dynamics are not that simplistic.
ZmanArt007 said:I believe Doc Dave is correct, but if you are that worked about it, just make the outlet of the doc filter even, or even above the top of the wier. You shud have no problems at all then.
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