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what to do with overflow?
I have a Quietflow 600 hang on overflow box... supposedly it should take
care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? |
"TekCat" wrote in message ... I have a Quietflow 600 hang on overflow box... supposedly it should take care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? throttle the output side of the pump, or get another/bigger overflow. |
#ed_op#DIV#ed_cl#Place a Tee on the return line, and run a line back
to the sump, place a ball valve on this deversion line, and open it slightly to devert some of the return ware back to the sump. It should be possible to find apoint where the pump and the overflow match up.#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#Robert#ed_op#/DIV#ed_cl# ---------------------------------------- Usenet Gateway provided by http://www.CaptiveReefing.com |
Get a biger sump, and/or improve your overflow.
Your water level in the sump will drop when the pump is running, and go back up when the pump is not. Does the tank come close to overflowing, or does the tank water level run at a normal level? Wayne Sallee Charles Spitzer wrote: "TekCat" wrote in message ... I have a Quietflow 600 hang on overflow box... supposedly it should take care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? throttle the output side of the pump, or get another/bigger overflow. |
How many gallons of fluctuation are you getting between
pump on, and pump off? What's the size of your tank? Wayne Sallee TekCat wrote: the return area of the sump is only 3 gallons, so it gets "dry" fast. I could try to make bigger sump, or ... maybe making new teeth in overflow skimming box could do the trick? "Wayne Sallee" wrote in message link.net... Get a biger sump, and/or improve your overflow. Your water level in the sump will drop when the pump is running, and go back up when the pump is not. Does the tank come close to overflowing, or does the tank water level run at a normal level? Wayne Sallee Charles Spitzer wrote: "TekCat" wrote in message ... I have a Quietflow 600 hang on overflow box... supposedly it should take care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? throttle the output side of the pump, or get another/bigger overflow. |
i'm curious, why would increasing the size of the sump work? i would think
that since the pump is emptying it, eventually either the pump will empty the sump and run dry, or the tank will overflow because not enough water is coming out of it. "Wayne Sallee" wrote in message link.net... How many gallons of fluctuation are you getting between pump on, and pump off? What's the size of your tank? Wayne Sallee TekCat wrote: the return area of the sump is only 3 gallons, so it gets "dry" fast. I could try to make bigger sump, or ... maybe making new teeth in overflow skimming box could do the trick? "Wayne Sallee" wrote in message link.net... Get a biger sump, and/or improve your overflow. Your water level in the sump will drop when the pump is running, and go back up when the pump is not. Does the tank come close to overflowing, or does the tank water level run at a normal level? Wayne Sallee Charles Spitzer wrote: "TekCat" wrote in message ... I have a Quietflow 600 hang on overflow box... supposedly it should take care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? throttle the output side of the pump, or get another/bigger overflow. |
Because I don't think that is the true problem. Maybe the
overflow lets the water fluctuate more than he wants, but I think that the bigest problem that he is having, is that the water volume in the sump is so small that it does not give him adiquate room for that fluctuation. Wayne Sallee Charles Spitzer wrote: i'm curious, why would increasing the size of the sump work? i would think that since the pump is emptying it, eventually either the pump will empty the sump and run dry, or the tank will overflow because not enough water is coming out of it. "Wayne Sallee" wrote in message link.net... How many gallons of fluctuation are you getting between pump on, and pump off? What's the size of your tank? Wayne Sallee TekCat wrote: the return area of the sump is only 3 gallons, so it gets "dry" fast. I could try to make bigger sump, or ... maybe making new teeth in overflow skimming box could do the trick? "Wayne Sallee" wrote in message rthlink.net... Get a biger sump, and/or improve your overflow. Your water level in the sump will drop when the pump is running, and go back up when the pump is not. Does the tank come close to overflowing, or does the tank water level run at a normal level? Wayne Sallee Charles Spitzer wrote: "TekCat" wrote in message ... I have a Quietflow 600 hang on overflow box... supposedly it should take care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? throttle the output side of the pump, or get another/bigger overflow. |
Wayne Sallee wrote:
Because I don't think that is the true problem. Maybe the overflow lets the water fluctuate more than he wants, but I think that the bigest problem that he is having, is that the water volume in the sump is so small that it does not give him adiquate room for that fluctuation. Wayne Sallee Charles Spitzer wrote: Correct. Depending on the size of the tank, if the water level raises 1/4 of an inch it could be more than 1.5 gallons of water alone, let alone the water in the pipes. 3 gallons is not much water, and most overflows depending on the tooth arrangement can use up to 1/2 or even 3/4 of on inch of water to build up before they are close to max flow, and if the overflow needs 3/4 of on inch of water in a 72x18 tank, that would be around 4 gallons of water, so the sump would run dry before the overflow got to max flow rate..... An of course if he has a long pipe run with large pipe there could be a gallon of water in the return pipe also. Kim |
The return section of your sump is too small. You'll need to keep
adding water just to keep up with what it sucks up, just until things even out. Add too much water, and when the return pump is off, the sump may overflow from that additional water volume. Marc TekCat wrote: I have a Quietflow 600 hang on overflow box... supposedly it should take care of 600GPh. Also I have pump that is pumping from sump to the tank, it is Dolphin DP 560. With 2' head loss the chart says it would output 460GPH. So far so good, but the overflow doesn't seem to take 460gph quite well, I get my sump's return area empty very quickly, this means one thing that the pump pumps faster than overflow can handle. Any thoughts on how to solve this? -- Personal Page: http://www.sparklingfloorservice.com/oanda/index.html Business Page: http://www.sparklingfloorservice.com Marine Hobbyist: http://www.melevsreef.com |
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