Recommend me a NW pump for a 12" diameter skimmer

luke33 · 04/08/2007, 06:33 PM

I'm going to build a 12" diameter skimmer that has a 18" reaction chamber and 6" neck that will be 6" in diameter, what gph and pump or pump's would you recommend?

luke33 · 04/09/2007, 05:50 AM

Bump

skwirl · 04/09/2007, 07:53 AM

iwould go with multiple pumps.. i would think there would be less turbulence that way.

luke33 · 04/09/2007, 08:09 AM

Do you think it could handle two genx4100nw's? I do plan on having a bubble plate as well.

kodyboy · 04/09/2007, 08:51 AM

luke,
I think it could handle two genx4100's easily, three no problem. Why not recirc three 4100s and have a feed pump? A 12" reaction chamber is quite large. Another option is the orca needlewheel dart.....but that is expenisve and probably would not be that much better than three 4100s.

luke33 · 04/09/2007, 08:55 AM

I'm debating the recirc aproach......i'm just not sure about the feed pump, not sure what would work, maybe a mag 5 or 7?

Hop · 04/09/2007, 10:08 AM

Well I'm running two gen-x 6000 on an 8" diameter, 48" high skimmer and still think it's not enough. I think 3 on the 8" would be better, so I think 4 on a 12" would be better.

I think the dart is a good idea, but might be too much for a skimmer with on 18" of reactor height.

If I had the cash I would go with four of the H&S modded Eheim 1262

h20cooled · 04/09/2007, 10:28 AM

I have a 10" diameter DIY skimmer with 2 Sedra 5000 mesh wheel setup, and if I had to do it all over again I would go with dual Eheim mesh wheel pumps or something in that same class. yes it will cost you more but they are dead silent, put out a LOT of air into the skimmer, and the use a lot less power.

luke33 · 04/09/2007, 11:31 AM

H2O, that skimmer you made looks nice, now if there was only a nice place to buy cast acrylic from that wasn't going to cost more than the aquaeuro classic?

h20cooled · 04/09/2007, 11:42 AM

For cast acrylic check out mcmastercarr.com the best thing about them is they sell it in 1', 2', and up sizes and they do not have a 6' minimum like a lot of sites do. Also their shipping is cheap and very well packaged. I've bought around 10 varying sizes of cast tubing from them and never had a problem.

gcarroll · 04/09/2007, 11:49 AM

Quote:

Originally posted by h20cooled
dual Eheim mesh wheel pumps or something in that same class. yes it will cost you more but they are dead silent, put out a LOT of air into the skimmer, and the use a lot less power.

Great recomendation. That skimmer would be pulling at least 50 lpm of air.

luke33 · 04/09/2007, 11:50 AM

Thanks H2O, thats the prob i was running into.....i dont need 72" of a 12" diameter tube.....although that would be a heck of a skimmer....but my wife probably wouldn't like to see that in the formal living room! lol (I think it would be cool)

h20cooled · 04/09/2007, 11:51 AM

LOL, yeah you would need one heck of a large needle wheel for that, maybe one of those darts.

JCTewks · 04/09/2007, 12:54 PM

I've been pondering the idea of meshmodding a panworld or something similiar. treat it like you were messhing a dart, only it might be able to fit those midsized skimmers where you don't want to put 3-4 pumps and too small for a dart. i've also been thinking about doing up a sequence mantaray or something in that size and see if it will work on like a 30"x 6' skimmer.

RichConley · 04/09/2007, 02:09 PM

Quote:

Originally posted by kodyboy
luke,
I think it could handle two genx4100's easily, three no problem. Why not recirc three 4100s and have a feed pump? A 12" reaction chamber is quite large. Another option is the orca needlewheel dart.....but that is expenisve and probably would not be that much better than three 4100s.

Honestly, I doubt it'll handle 3 meshmodded 4100s. You're looking at a huge neck there, maybe 8" across.

RichConley · 04/09/2007, 02:14 PM

Quote:

Originally posted by JCTewks
I've been pondering the idea of meshmodding a panworld or something similiar. treat it like you were messhing a dart, only it might be able to fit those midsized skimmers where you don't want to put 3-4 pumps and too small for a dart. i've also been thinking about doing up a sequence mantaray or something in that size and see if it will work on like a 30"x 6' skimmer.

stick to the Tinymight/sequence snapper/etc. You want a low rpm, high flow pump.

luke33 · 04/09/2007, 02:15 PM

Yea, maybe two genx6000 NW with the meshmod, and a 6" tall and 6" diameter neck. A recirc, it should be good imo, or the eheim's if i get crazy.

luke33 · 04/09/2007, 02:16 PM

Yea, personally i would like to just have one pump on it as well.

RichConley · 04/09/2007, 02:25 PM

Quote:

Originally posted by luke33
Yea, maybe two genx6000 NW with the meshmod, and a 6" tall and 6" diameter neck. A recirc, it should be good imo, or the eheim's if i get crazy.

Thats not gonna be nearly big enough. I've got an 8" tall, 4" neck, and it maxes out around 30 scfh. You can get 50+ out of a Genx4100.

Assuming 30 maxes out my 4" neck, with an area of 4pi, a 6" wide, 8" tall neck, would be 9pi, which would be around 65scfh, which a pair of 4100's would more than max out. An 8" neck should be able to take about 120scfh....

JCTewks · 04/09/2007, 02:27 PM

are the genx, panworld, iwaki type pumps not low rpm? is there a smaller pump out there that would do a 12" x 24" skimmer?

JCTewks · 04/09/2007, 02:31 PM

rich, what is that formula for figuring out how much air a neck can handle?

luke33 · 04/09/2007, 03:02 PM

Rich, so an 8"tall 8"wide neckwill do the trick with an 18" tall reaction chamber at 12" diameter?

04/08/2007, 06:33 PM	#1
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Recommend me a NW pump for a 12" diameter skimmer I'm going to build a 12" diameter skimmer that has a 18" reaction chamber and 6" neck that will be 6" in diameter, what gph and pump or pump's would you recommend?

04/09/2007, 10:08 AM	#7
Hop Carpe Noctem!!! Join Date: Jul 2004 Location: Western Colorado Posts: 8,548	Well I'm running two gen-x 6000 on an 8" diameter, 48" high skimmer and still think it's not enough. I think 3 on the 8" would be better, so I think 4 on a 12" would be better. I think the dart is a good idea, but might be too much for a skimmer with on 18" of reactor height. If I had the cash I would go with four of the H&S modded Eheim 1262 __________________ Hop Current Tank Info: 300-gallon in-wall system (mixed reef)

04/09/2007, 05:50 AM	#2
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Bump

04/09/2007, 07:53 AM	#3
skwirl Registered Member Join Date: Feb 2006 Location: tn Posts: 872	iwould go with multiple pumps.. i would think there would be less turbulence that way.

04/09/2007, 08:09 AM	#4
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Do you think it could handle two genx4100nw's? I do plan on having a bubble plate as well.

04/09/2007, 08:51 AM	#5
kodyboy Moved On Join Date: May 2003 Posts: 2,990	luke, I think it could handle two genx4100's easily, three no problem. Why not recirc three 4100s and have a feed pump? A 12" reaction chamber is quite large. Another option is the orca needlewheel dart.....but that is expenisve and probably would not be that much better than three 4100s.

04/09/2007, 08:55 AM	#6
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	I'm debating the recirc aproach......i'm just not sure about the feed pump, not sure what would work, maybe a mag 5 or 7?

04/09/2007, 10:28 AM	#8
h20cooled Premium Member Join Date: Dec 2003 Location: Milwaukie, OR Posts: 1,016	I have a 10" diameter DIY skimmer with 2 Sedra 5000 mesh wheel setup, and if I had to do it all over again I would go with dual Eheim mesh wheel pumps or something in that same class. yes it will cost you more but they are dead silent, put out a LOT of air into the skimmer, and the use a lot less power.

04/09/2007, 11:31 AM	#9
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	H2O, that skimmer you made looks nice, now if there was only a nice place to buy cast acrylic from that wasn't going to cost more than the aquaeuro classic?

04/09/2007, 11:42 AM	#10
h20cooled Premium Member Join Date: Dec 2003 Location: Milwaukie, OR Posts: 1,016	For cast acrylic check out mcmastercarr.com the best thing about them is they sell it in 1', 2', and up sizes and they do not have a 6' minimum like a lot of sites do. Also their shipping is cheap and very well packaged. I've bought around 10 varying sizes of cast tubing from them and never had a problem.

04/09/2007, 11:50 AM	#12
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Thanks H2O, thats the prob i was running into.....i dont need 72" of a 12" diameter tube.....although that would be a heck of a skimmer....but my wife probably wouldn't like to see that in the formal living room! lol (I think it would be cool)

04/09/2007, 11:51 AM	#13
h20cooled Premium Member Join Date: Dec 2003 Location: Milwaukie, OR Posts: 1,016	LOL, yeah you would need one heck of a large needle wheel for that, maybe one of those darts.

04/09/2007, 12:54 PM	#14
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	I've been pondering the idea of meshmodding a panworld or something similiar. treat it like you were messhing a dart, only it might be able to fit those midsized skimmers where you don't want to put 3-4 pumps and too small for a dart. i've also been thinking about doing up a sequence mantaray or something in that size and see if it will work on like a 30"x 6' skimmer.

04/09/2007, 02:15 PM	#17
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Yea, maybe two genx6000 NW with the meshmod, and a 6" tall and 6" diameter neck. A recirc, it should be good imo, or the eheim's if i get crazy.

04/09/2007, 02:16 PM	#18
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Yea, personally i would like to just have one pump on it as well.

04/09/2007, 02:27 PM	#20
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	are the genx, panworld, iwaki type pumps not low rpm? is there a smaller pump out there that would do a 12" x 24" skimmer?

04/09/2007, 02:31 PM	#21
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	rich, what is that formula for figuring out how much air a neck can handle?

04/09/2007, 03:02 PM	#22
luke33 Moved On Join Date: Dec 2006 Location: Indiana Posts: 8,375	Rich, so an 8"tall 8"wide neckwill do the trick with an 18" tall reaction chamber at 12" diameter?