restricting powerhead flow?

cmar

AC Members
May 18, 2007
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is it o.k to restrict/reduce the flow from a powerhead or pump, with a valve to achieve proper flow from a sump? i've seen different views on this, so i'll go with the majority.
thanks!
 
Groan... Sorry schigara that's not actually true.

You can restrict any centrifugal pump as long as you don't block it totally. The pump wattage will ALWAYS go down, not up. The pump will last longer and run cooler. The pump will in NO WAY work harder or be negatively effected in any way by restricting the output.

You can also divert either is fine. Diverting just uses more power.
 
Most people I spoke to said it would be a better idea to divert it, so that's what I'll be doing when setting up the plumbing for my tank . ..


Not that I don't believe kcress, just that I already purchased all the plumbing to make the divertion possible.. :D
 
Groan... Sorry schigara that's not actually true.

You can restrict any centrifugal pump as long as you don't block it totally. The pump wattage will ALWAYS go down, not up. The pump will last longer and run cooler. The pump will in NO WAY work harder or be negatively effected in any way by restricting the output.

You can also divert either is fine. Diverting just uses more power.

I'm no expert on this sort of thing but I do have to say that goes against every other thing I've read or heard about this particular topic.
 
Seems like restricting would overheat it,working harder to push waterflow.. but again just an opinion..Alway its safe to Divert, just seems like a better idea and more controllable..
 
Groan... Sorry schigara that's not actually true.

You can restrict any centrifugal pump as long as you don't block it totally. The pump wattage will ALWAYS go down, not up. The pump will last longer and run cooler. The pump will in NO WAY work harder or be negatively effected in any way by restricting the output.

You can also divert either is fine. Diverting just uses more power.

Sorry, but you may want to run a watt meter when doing this. You'll find it goes against what you just said :). The same principle works on many "pumps."
 
o.k., i guess i'll just divert! why risk anything else. thanks to everyone!
 
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