Waveline DC 12000 plumbing help?

[marcnc]

I think the size of the Waveline DC 12000 is 1.25", I was planning to split it off into 2 1" returns that go into the tank into 3/4 loc-line, is that going to be OK, or do I need more 3/4 in the tank? This is for 180 gallon tank 72x24x24, running herbie overflow.

Thanks

[mcgyvr]

loc-line can present itself as quite a restriction thus reducing flow quite a bit..
IMO forget the locline
If going up/over the back simply put an elbow (unglued) to allow you to direct as needed..
But powerheads should be whats providing the most flow in the display..

[FirstContact]

I think the size of the Waveline DC 12000 is 1.25", I was planning to split it off into 2 1" returns that go into the tank into 3/4 loc-line, is that going to be OK, or do I need more 3/4 in the tank? This is for 180 gallon tank 72x24x24, running herbie overflow.

Thanks

I used 1 1/4" off mine and split off a line for a manifold. After the manifold it narrows down to one inch to my fuge. The other half narrows down to a 3/4" inch line that splits into two for the returns. If I was doing it again, I would have larger holes drilled in the tank for the returns and drains and get larger bulkheads. I have the common size two 3/4" returns and two 1" drains.

[laverda]

I would use at least 4 lock lines if you really want to us them. For two you might as well use a much smaller pump.

[Vinny Kreyling]

I ran into 1.25" hose & pipe split into a tee, then reduced to 1" upward on both ends to 3/4" sea Swirls for the returns. I also feed the skimmer with the pump.
I run @ 4.5 on the controller.

[marcnc]

So I have these devices pre-made for going over the back. They are 3/4, I removed the loc-line in the picture and loc-line spliter with nozzle on each side of the tank. So 1 return on each side of the tank, with 2 nozzle each. I also removed the barb fitting and using a PVC adapter going from 3/4 to 1" into a T which the pump connects to. At this point the pump connects to the T using reducer T. Out of the pump to the T is 1.25". So are you guys saying I should add 2 more of the returns over the back with total of 8 loc-line in the tank, if I split them? Power heads I have 2 the Apex WAV. Nothing is setup yet so nothing really set in stone, other than these over the back returns I would like to use them as they were expensive and cannot be returned.
Thanks for the help

[Vinny Kreyling]

No picture so we can only speculate -- the less "head" you put on the pump the better the flow.

[Zacktosterone]

loc-line can present itself as quite a restriction thus reducing flow quite a bit..
IMO forget the locline
If going up/over the back simply put an elbow (unglued) to allow you to direct as needed..
But powerheads should be whats providing the most flow in the display..
i agree with everything he said

[marcnc]

Here picture, keep in mind, I have it split where it comes out of the PVC into the tank with the loc-line, it goes to 2 loc-lines. The hose barb on the other side has been removed and it goes into a 3/4 to 1" adapter.

Well I tried several time, and the picture fails to upload, not sure why :hmm5:

[mortimersnerd]

I'd run nothing smaller than 1" if you stick with 2 returns. If you want loc line, I'd do a 1 or 1.25 inch manifold with 3-4 returns off it

[marcnc]

I'd run nothing smaller than 1" if you stick with 2 returns. If you want loc line, I'd do a 1 or 1.25 inch manifold with 3-4 returns off it

Do you have any suggestions of how I would do the manifold? I assume have each return go into a T, connected together and then a T for the line to the pump?

Thanks

[mortimersnerd]

That could work. I usually just fit pieces of pcv together till I find something good. If you can post a pic of you setup it'd help.