Sump problem - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 10-06-2011, 10:54 PM Thread Starter
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Sump problem

So I have my 36g tank with 20g sump setup, one problem i didn't realize. My pump is a higher gph than my overflow (this is a drilled overflow) Any have any ideas to fix this problem, cause at this point, my pump just pumps my sump dry within minutes.
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post #2 of 8 (permalink) Old 10-06-2011, 11:08 PM
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Get a smaller pump?


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post #3 of 8 (permalink) Old 10-07-2011, 12:06 AM Thread Starter
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not an option. really don't have a spare 100$ right now..need that for co2 system
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post #4 of 8 (permalink) Old 10-07-2011, 12:08 AM
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Put a T in line with the return and a ball valve off the the T to return water back to the sump. That way you can control the amount of water going back into the tank vs. what goes right back into the sump. I can take a picture of mine if you don't see what I'm getting at, just let me know if you need it.
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post #5 of 8 (permalink) Old 10-07-2011, 12:10 AM
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Originally Posted by Misfit View Post
Put a T in line with the return and a ball valve off the the T to return water back to the sump. That way you can control the amount of water going back into the tank vs. what goes right back into the sump. I can take a picture of mine if you don't see what I'm getting at, just let me know if you need it.
This is the solution!


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post #6 of 8 (permalink) Old 10-07-2011, 02:48 AM
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another option is simply install the valve inline and throttle the output to the needed flow. I use a little giant for my return throttled back about 22% and have monitored with an amp meter the current draw. It actually decreases right to the point of dead heading the pump then it spikes.
Restricting the output is normal mechanical practice it's restriction of the inlet that damages a pump. Working in a power generating plant 99% of our pumps have a throttled discharge and this is no different other than being smaller


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If at first you don't succeed,,, keep kicking it
RubberSideDownOnTheLanding,
2-75g planted, 3-55g planted, 110g w/30g sump, 2018 update returning to sanity (Nutz)
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post #7 of 8 (permalink) Old 10-07-2011, 03:29 AM
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another option is simply install the valve inline and throttle the output to the needed flow. I use a little giant for my return throttled back about 22% and have monitored with an amp meter the current draw. It actually decreases right to the point of dead heading the pump then it spikes.
Restricting the output is normal mechanical practice it's restriction of the inlet that damages a pump. Working in a power generating plant 99% of our pumps have a throttled discharge and this is no different other than being smaller
This is what I would do. Put a ball valve on the output of your pump rather than trying to control the water entering your sump.

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post #8 of 8 (permalink) Old 10-07-2011, 05:10 AM Thread Starter
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I have the extra line, I think ill go with putting the ball valve on the pump, makes things easier. thanks a lot for the help!
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