Quietest Pump Available?

F

Forfend

New member
What is the quietist pump on the market? Used for a closed loop system, looking for 100-150gph. Just enough to keep water moving. Since it will be the only device under the DT it needs to be shhhh silent.
 
SRO water blasters. It's what I use after trying a ton of different ones. They cost a bit more but are worth it. (the sicce silents are no where near silent and very loud!)
 
If you are planning on using this as a closed loop I would just go with an Eheim 1262 and throttle it back with a ball valve.
 
SkullV said:
If you are planning on using this as a closed loop I would just go with an Eheim 1262 and throttle it back with a ball valve.
Click to expand...

Throttling it on the output would cause extra wear onto drive due to increase pressures, right? I know on sump return pumps you can relieve this pressure by dumping back into the sump return, but on closed loop how do you do this?

I can't throttle the input or the length of pipe between the valve and pump could run dry.
 
Forfend said:
Throttling it on the output would cause extra wear onto drive due to increase pressures, right? I know on sump return pumps you can relieve this pressure by dumping back into the sump return, but on closed loop how do you do this?

I can't throttle the input or the length of pipe between the valve and pump could run dry.
Click to expand...

I think you will find that with almost all of the pumps you are looking at the head pressure alone will drop output to a level where you will be satisfied throttling the pump back very little. Either way as long as you have the ball valve open 50% of greater on the OUTPUT side of the pump (never restrict input) your pump will be fine.

If you are concerned about throttling it back too much look at the 1260, but with as many outputs and restrictions as a closed loop generally has, I really think the 1262 would be your best fit.
 
The 1262 is not a super strong pump either. I have one on my tank as a return pump. I suspect you will not need to throttle it back at all. I can say it is super quiet but it depends on where the pump is sitting. If it sits flat on the rubber feet the you will be ok. When I bump my pump and tilt it on its side, or whatever, the vibrations ring through the entire system.

Ed
 
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