Need help with return plumbing

[JonnyD91]

I currently have a Qo 3000 submerged in my sump. I will be changing over to a eheim 1260 and running it externally. MY QO is too much flow for my overflow right now and i ts being chocked with a ball valve to slow it down. Currently i am using 1" plunbing and all it does is go straigt up into the tank I am also using a closed loop for circulation. Would i be better off plumbing the new pump with 3/4" or 1" Plumbing?

 

[Infern0]

Hmmm, don't know much about this cause I haven't done it myself yet...but what I'm going to do is have a 1" return that splits off into a couple 3/4" returns in different parts of tank. Might slow it down a tad.

 

[Seajuice]

Use 1" will help reduce the flow, (not much)
why don't you T it off 2-3 times and provide different overflows back into your tank. This will provide excellent circulation and o2 exchange and also solve your high pressure pump problem. You could even recirulate into a refuge if you had one. Lots of options

 

[crumbletop]

Here's what I plumbed in to have an adjustable flow on the return pump. The concept is to minimize the resistance on the pump in order to maximize the pump life. Go to this <a href="http://www.melevsreef.com/what_sump.html">link</a> and look at the photo about 1/2 way down the page. A section is added to the return pipe that allows flow to divert to another chamber in the sump. You can control whether or not any flow goes through that tube by adjusting the ball valve. It turned out I didn't need to use it, so mine is completely closed, but I have experimented with it and it works.

 

[JonnyD91]

<a href=showthread.php?s=&postid=6789686#post6789686 target=_blank>Originally posted</a> by Seajuice
Use 1" will help reduce the flow, (not much)
why don't you T it off 2-3 times and provide different overflows back into your tank. This will provide excellent circulation and o2 exchange and also solve your high pressure pump problem. You could even recirulate into a refuge if you had one. Lots of options

I have an eheim 1262 attached to an oceans motions squirt in a closed loop. This will primarily be to circulate the water between the tank and the sump. Im hoping the 150gph less will do the trick with the new pump.

 

[Bugs825]

I think that your best bet is to set up your returns where and how you want them with a line routed back to the fuge/sump on a valve. This leaves your options wide open. If you replace the pump with a weaker one just close the valve to give the tank 100% flow. Or if you replace with a higher flow pump just open it a little more. This way you are taking full advantage of the pump's ability to move water, even if its just back to the fuge/sump.

Nothing is more flustering than setting something up and having to redo it.

Nathan