300 DD Build

so a 5x turnover then i dont need a 3600 gph pump huh. in that case ill just get a nice dc internal pump. not jebao even tho mine has ran perfect for over a year.
 
It all depends if your running a manifold off your return pump. Im running my ATS,carbon,and gfo reactors off my Jebao DC12 and only have it up 5/6.
 
im going to run my curent return pump a dc 9000 for the manifold and a seprate pump for return only. i like to run the dc pump less than full power so im thinking a nice 12000 might do the job. i see that there are some dc pumps with better pressure ratings now so ill keep kicking it around.
 
I have a dc 12000, I getting ready to go to a reeflo. It is hard to get enough flow in a 300 if I had to do it over I would drill my 300.
 
I have a DC12000. After splitting off the output to drive various reactors, skimmer, & a feed line to a separate tank that holds my refugium, I then use the power settings on the pump to control how much flow goes back up to the DT.

If you put that pump to work driving enough pieces of equipment, you should be able to even leave it on full power without worry of overflowing your tank.
 
so your saying the 12000 doesnt max out the 2 one inch overflows?

No not even close! I actually have the dc12000 on one of my overflows and a mag 18 on the other and I am still not happy with flow. it has about 6' of head. I have a buddy that just got the reeflow and did a manifold, it is super quiet and supplies all his stuff.There is question if my overflows can handle a reeflow but if it cant I am thinking I will just use one of the manifold outlets to go back into sump. In addition to the dc12000, mag 18, I also have 2 wp 40s and a wp 60 in the tank. I had bought a mag 24 but is way to loud for me.

Like I said if I had to do it all over again I would drill a couple large overflows and use the other as returns. I would definatly have a closed loop.
 
I don't want to add a bunch of holes in it. But if I remember correctly doesn't a one inch overflow only glow like 700gph?
 
Yeah I am thinking that is correct. I think the dc 12000 looses a lot of pressure fast. I understand not wanting holes but I also hate all the wavemakers in the tank.
 
yeah the powerheads dont look the best but closed loop would elimanate side viewing. they have some newer dc pumps out that say they are better preasure rated. ill probably just go with the reeflow and do some modifying to the overflows.
 
yeah the powerheads dont look the best but closed loop would elimanate side viewing. they have some newer dc pumps out that say they are better preasure rated. ill probably just go with the reeflow and do some modifying to the overflows.

Why would it eliminate side viewing? I would drill it between the overflows on the bottom and then hide it with rockwork. Just help a buddy do his 240 and it turned out great. Made me super jealous I didn't have a closed loop in mine. I have made do with mine though,just wish it was different.I think flow is one thing people underestimate in a large tank. It takes a lot!
 
I just set up a 300 dd. I run a water blaster 5000 and am switching to a 7000 to be able to run a gfo reactor from it and possibly a chiller.

I think that is the sump I asked about and the seller just stopped responding.. rude.
 
Probably doesn't help much because I run a basement sump, but I like my reeflo gold hammerhead. It is loudish, but it's in the basement. It is able to supply my 210 gallon tank a floor up, skimmer, 2 gfo reactors, 1 carbon reactor and a 65 gallon frag tank. I'm not sure how loud some of the smaller reeflo's are. Maybe find some people running them and check their tanks out?
 
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