I resently moved my sump into my basement to issulate the noise, but am having difficulty get a decent flow rate to the tank. I was using an eiheim 1260, but was only getting about 240 gph, so I got a quietone 4000HH and am finding that is only giving me 288 gph. Has anyone ever tried running 2 pumps on the same hose using a y connecter to get more gph? Does the gph increase or does the y connector create to much drag? I really want to stay with an in sump pump as opposed to an external.
dual pumps
- Thread starter d.cheney
- Start date
You can still run external without drilling it you do an over the top plumbing job with the ability to prime... Good luck!
dots
Premium Member
Yes it is possible to either run pumps in parallel or series. However, I don't know if the current pump you have is designed for the series setup.
Theoretically, one would assume that adding two in parallel would double the flow rate, but it doesn't......as the flow rate increases, a greater head is produced so the total flow rate isn't doubled. So adding two in parallel to boost it would probably only increase the flow rate by 30% I am estimating by looking a generic parallel pump curve.
The attractive thing about having the two would be a redundant system, but I don't think the double in price of another pump with only 30% return is a wise design choice.
I agree with the above, up to a bigger external pump and call it good, they are usually designed for your loads compared to the smaller submerged pumps that would probably fail prematurly under that loading condition........what is the current pipe design from the basement to the display and what kind of turnover rate are you trying to achieve?
Theoretically, one would assume that adding two in parallel would double the flow rate, but it doesn't......as the flow rate increases, a greater head is produced so the total flow rate isn't doubled. So adding two in parallel to boost it would probably only increase the flow rate by 30% I am estimating by looking a generic parallel pump curve.
The attractive thing about having the two would be a redundant system, but I don't think the double in price of another pump with only 30% return is a wise design choice.
I agree with the above, up to a bigger external pump and call it good, they are usually designed for your loads compared to the smaller submerged pumps that would probably fail prematurly under that loading condition........what is the current pipe design from the basement to the display and what kind of turnover rate are you trying to achieve?
BeanAnimal
Premium Member
What is the head distance from the water surface of the display to the water surface of the sump?
dougchambers
New member
Have you considered using one pump for the sump return and build a closed loop with the second. This method does a couple of things for you;
1. It reduces the amount of flow through your sump and the propensity for microbubbles.
2. It increases the amount of flow in your tank which is really what I think you are looking for.
3. Doesn't require purchasing new pumps
The Eiheim 1260 is rated to 12'1" while the QuietOne is closer to 13'. If it were me, I would put the 4000HH in the sump and mount the 1260 in the stand or behind the tank to service a closed loop. I'm guessing the 1260 is the quieter of the two so put it closest to the tank. Down the road if you want more flow through the sump, you can change the 4000HH. If you are happy with the sump flow, but want more in the tank, increase the size of your CL pump.
IMHO, closed loops are a better way to get flow in the tank than pushing huge amounts of water through a sump. In our old 75g, we used a MAG9.5 for the return and a MAG7 and SeaSwirl for a closed loop. It worked very well.
-Doug
1. It reduces the amount of flow through your sump and the propensity for microbubbles.
2. It increases the amount of flow in your tank which is really what I think you are looking for.
3. Doesn't require purchasing new pumps
The Eiheim 1260 is rated to 12'1" while the QuietOne is closer to 13'. If it were me, I would put the 4000HH in the sump and mount the 1260 in the stand or behind the tank to service a closed loop. I'm guessing the 1260 is the quieter of the two so put it closest to the tank. Down the road if you want more flow through the sump, you can change the 4000HH. If you are happy with the sump flow, but want more in the tank, increase the size of your CL pump.
IMHO, closed loops are a better way to get flow in the tank than pushing huge amounts of water through a sump. In our old 75g, we used a MAG9.5 for the return and a MAG7 and SeaSwirl for a closed loop. It worked very well.
-Doug
dots
Premium Member
Agreed a CLwould be the better way do to it. Having a CL and a sump circuit would be the best design choice.
I remember reading and when setting mine up that 10x turnover is what you wanted through your sump........this is even more so with an SPS tank.
I assumed he was just trying to get that turnover rate up and not use it as the sole water mover for the system, and hadn't considered giving another suggestion like that.......good solution to the design problem.
I remember reading and when setting mine up that 10x turnover is what you wanted through your sump........this is even more so with an SPS tank.
I assumed he was just trying to get that turnover rate up and not use it as the sole water mover for the system, and hadn't considered giving another suggestion like that.......good solution to the design problem.
I have considered a CL, but the hum of the eiheim was driving me nuts in the living room. I raised the sump up about 14" and am getting the flow I was looking for. I do have a maxi-jet in the tank to add curculation, but I wouldn't mind losing that as well, as it tends to guite noisy too.
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