Help Bulkhead and pump HELP

  • We are currently upgrading MFK. thanks! -neo
so i looked through all my filter pix and couldnt find one i thought i had of my way.
so you get this pretty pic instead. :grinno:

black is the sump
yellow pump
pink or red hose or pipe
green valve

put a T in the main hose like in pic.
then to a valve,then that goes back to the beginning of the sump/wet dry.
then adjust it as needed.
this way your not putting back pressure on the pump.
my 90g tank has been like this for a long time.
hope it helps :)
oh and adding another bulk is what i planned to,but in the mean time,lol.

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It's perfectly fine to put a valve on the discharge of an aquarium (centrifugal) pump, your pump will actually run cooler and use less power restricted. A "T" can be used but is not needed.
 
In the case of an external pump most of the heat transfered to the water comes from friction of the water with the pipe walls. Putting a valve on the discharge increases friction,and therefore increases the heat build up. In my opinion you should use a return line as Midnight suggested.

[For real viscous fluids, mechanical energy is converted into heat (in the viscous boundary layer along the pipe walls) and is lost from the flow. Still, the total head h (or energy) remains constant.]
 
MIDNIGHT THAT IS wat all of my familly was telling me to do so i might look at that because if you do valve somthing to much you will just blow out the pump
 
Dan Feller;1478749; said:
In the case of an external pump most of the heat transfered to the water comes from friction of the water with the pipe walls. Putting a valve on the discharge increases friction,and therefore increases the heat build up. In my opinion you should use a return line as Midnight suggested.

[For real viscous fluids, mechanical energy is converted into heat (in the viscous boundary layer along the pipe walls) and is lost from the flow. Still, the total head h (or energy) remains constant.]
Click to expand...

Do a search on the forum... It was already proven that restricting the flow of a centrifugal pump reduces power consumption and heat...
 
stingray man;1479118; said:
MIDNIGHT THAT IS wat all of my familly was telling me to do so i might look at that because if you do valve somthing to much you will just blow out the pump
Click to expand...

Centrifugal pumps don't suffer from added restriction. Otherwise you would only ever be able to use them with zero head... that would be a pretty useless pump.
 
well im still going to do the T thing but i when i went to lowes they didnt have everything so im going to go to ace tomrow but to keep the tubbing on what should i use?
 
those screw-able tightners were wat i was going to use. are those fully submerable like can i use them on the actual pump?
 
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