Best way to plumb Dart for a CL
- Thread starter Fmellish
- Start date
logans_daddy
New member
i have a dart and an OM 4way that i will be installing this weekend on my 250gal with rigid pvc and soft pvc to the 4way. i did a LOT of research on these pumps and the best methods to install a CL. i think the dart OM4way and the snapper OM SS are probably the best combinations as far as flow, power comsumption, and noise. i have yet to hear from someone who has had bad experiences with these pumps.
shawn:bum:
shawn:bum:
So you're saying I should use an Oceans Motions "ss" (supersquirt?), with the snapper?
I wasn't plannnig on any OM device, I was just going to T the output to both of my CL returns. You're recommending a device to alternate the flow more?
I need all the recommendations I can get. I just want to make sure I'm understanding you correctly. Because I looked at the OM products before and I couldn't figure out which one to get.
Thanks
Josh
marcrothschild
Active member
I use a dart CL...it is silent. When I turn my return and skimmer off you cant hear the Dart at all. I use 2 x 1.5" bulkheads teed together into a 2" pipe to feed the Dart...that minimizes the velocity @ each intake. On the outpot I use 1.5"spaflex which is plumbed into a manifold which feeds 4x 1"bulkheads which have 1"OM Omniflex nozzles.
I love the clean look, but I spent about 30hrs plumbing this tank...the majority of which was the CL. I spent like 300.00 on just plumbing parts. The Tunzes would have cost about the same in the end....and been way easier....but they are pretty big in 100g or less.
I also got my tank from socal 60L 20W 18T eurobraced w external overflow
HTH
I love the clean look, but I spent about 30hrs plumbing this tank...the majority of which was the CL. I spent like 300.00 on just plumbing parts. The Tunzes would have cost about the same in the end....and been way easier....but they are pretty big in 100g or less.
I also got my tank from socal 60L 20W 18T eurobraced w external overflow
HTH
murphreef
Active member
i have a dart on my 180.... i have 2-1" holes T'd up to a 2" T straight down to the Dart then returns straight up via a 1.5" return pvc pipe to my oceans motion 4 way which returns in four seperate areas in the tank creating great random flow....
id ventur to say im getting close to 3600gph out of it it puts out alot of water....
i added 2 seios in my tank since i wanted more sps and wanted some more flow though...
however i really like the CL and the Dart its super quite u cant even hear it....
i think u should be fine with it IMO
id ventur to say im getting close to 3600gph out of it it puts out alot of water....
i added 2 seios in my tank since i wanted more sps and wanted some more flow though...
however i really like the CL and the Dart its super quite u cant even hear it....
i think u should be fine with it IMO
Sounds great guys, thanks.
So now I'm wondering about the plumbing.
Keep in the back of your mind this is a 90g cube tank. So I think the snapper may be a better pump than the Dart.
I was reading the troubleshooting FAQ for the Reeflo pumps and it says to feed the intake with as wide of a pipe as you can.
So I'll use 1.5" pipe from my 1.5" CL drain bulkhead. Directly down to the snapper.
Then from the output of the snapper I'll run 1.5" to a OM 4 way. and then 1" from each of the 4 outs to 4 of the 6 holes in my tank. I'll use the remaining two holes for my return pump.
Does this sound correct?
Is there an OM 4 way that will take 1.5" input and (4) 1" output?
Which OM product is for me?
Thanks
JOsh
So now I'm wondering about the plumbing.
Keep in the back of your mind this is a 90g cube tank. So I think the snapper may be a better pump than the Dart.
I was reading the troubleshooting FAQ for the Reeflo pumps and it says to feed the intake with as wide of a pipe as you can.
So I'll use 1.5" pipe from my 1.5" CL drain bulkhead. Directly down to the snapper.
Then from the output of the snapper I'll run 1.5" to a OM 4 way. and then 1" from each of the 4 outs to 4 of the 6 holes in my tank. I'll use the remaining two holes for my return pump.
Does this sound correct?
Is there an OM 4 way that will take 1.5" input and (4) 1" output?
Which OM product is for me?
Thanks
JOsh
golfish
Team RC
Justin. If your feeding the dart using two 1" holes\pipes\bulkheads your going to kill that pump in a short time, plus there's no way your doing any where near 3600 gph....2x1" doesn't equal the flow of 2"...2x1.5" doesn't equal the flow of 2".......I'm not sure what you mean by 2-1" holes but if its what it sounds like your going to shorten the life of the pump...
murphreef
Active member
hmmm.... i duno mark but i have 2-1" bulkheads which means its pulling 1" of water from both ends and then T's up to a 2" T doesnt that sound equal imean 1+1 equal 2 righth? i mean maybe i just dont get it.... hmmmm if i put 2-1.5" drains how can a 2" intake on a pump pull more than 2"s
please explain mark?
the pump is running cool and quite and lots of water comes outta it so i dont thinik im guna ruin it..... its been running now for 8 months no prob 24/7
please explain mark?
the pump is running cool and quite and lots of water comes outta it so i dont thinik im guna ruin it..... its been running now for 8 months no prob 24/7
logans_daddy
New member
yeah....im not so sure i understand that either. if you take a look at the forums at OM.com a lot of people are feeding the dart with dual 1" drains. my 250 was custom made for me with dual 1" drains which i will open up to 2" after the TUBV and hit a 2"T that will drain directly into the dart. i have a hard time believing that the water coming out of my 2" T would not be equal to the amount coming directly out of a 2" bulkhead.
shawn:bum:
shawn:bum:
marcrothschild
Active member
A 2" bulkhead can allow more water to pass than 2x 1.5" bulkheads? Im no engineer, but I dobt that.
energy_crisis
New member
A 1" pipe will have a cross-sectional area of 3.14 x 0.5 x 0.5 (pi x r x r = area of circle) which is 0.785sqin. Multiply that by 2 for two pipes and you get 1.57sqin.
A 2" pipe will have a cross-sectional area of 3.14 x 1 x 1 = 3.14. That's double that of 2 one inch pipes...so a 2" pipe will allow 4xs the flow of a 1" pipe.
A 1.5" pipe will have 3.14 x 0.75 x 0.75 = 1.77sqin.
Therefor a single 2" pipe can almost do better than two 1" and one 1.5" pipe combined (edit)!
A 2" pipe will have a cross-sectional area of 3.14 x 1 x 1 = 3.14. That's double that of 2 one inch pipes...so a 2" pipe will allow 4xs the flow of a 1" pipe.
A 1.5" pipe will have 3.14 x 0.75 x 0.75 = 1.77sqin.
Therefor a single 2" pipe can almost do better than two 1" and one 1.5" pipe combined (edit)!
golfish
Team RC
<a href=showthread.php?s=&postid=8040311#post8040311 target=_blank>Originally posted</a> by murphreef
hmmm.... i duno mark but i have 2-1" bulkheads which means its pulling 1" of water from both ends and then T's up to a 2" T doesnt that sound equal imean 1+1 equal 2 righth? i mean maybe i just dont get it.... hmmmm if i put 2-1.5" drains how can a 2" intake on a pump pull more than 2"s
please explain mark?
the pump is running cool and quite and lots of water comes outta it so i dont thinik im guna ruin it..... its been running now for 8 months no prob 24/7
Justin, I'm sure there's no problem, its just that the pump is not getting "stuffed" with water the way it should be so its working a lot harder to suck water (Cavitating sp?)................I'm suprised your tanks not full of bubbles.
2X1" pipe doesn't come close to 2" pipe, its not even in the same ball park.I know MDM says its ok to reduce the intake to 1.5"(2x1" doesn't come close to 1.5" either) they just forget to mention the flow rate will drop and the life of the pump will be cut shorter...There's a reason the Valute has a 2" intake.
Believe me, you have no idea what "lots of water" is....I'd be suprised if your pump is doing 1500 gph..... Part of what I do for a living involves rebuilding and plumbing these kinds of pumps. I know a little (not as much as I should) about em.
I wouldn't rush right out and swap out your plumbing. I'm sure the pump wont burn up tomorrow, if you and your corals are happy with the flow then that's all that really matters.
NaH2Ofreak
Premium Member
I have a 125gal tank. 48"x24"x25". I plumbed my dart in with 2, 1.5" intakes going into a 2" true union ball valve and a 1.5" output goint to 3, 3/4" outputs along the bottom back of the tank and 2, 3/4" seaswirls. I get pretty good flow. Although, if I open the 3, 3/4" valves on the "static" outputs along the bottom back of the tank, there is not much left comming out of the seaswirls at all.
Here is how it is plumbed.
In this pic, the dart is not plumbed in yet but, it sits on the floor, on the right side of the tank, where the drain and output terminate.
Dennis
Here is how it is plumbed.
In this pic, the dart is not plumbed in yet but, it sits on the floor, on the right side of the tank, where the drain and output terminate.
Dennis
ReefMeister2
Premium Member
I just plumbed a CL system for Marc (SCMAS president) this past Wednesday that is very similar in configuration to marcrothschild's. Marc decided to go with a Sequence pump, based upon my suggestion as well as a few other people. I personally prefer the 1,000 series with 1-1/2" intake but he ultimately chose a 750. The pump is absolutely SILENT! The only downside is the 2" intake but we solved that issue by merging dual (1-1/2" and 1") intakes into a single 2" feed via a PVC sweeping drain "Y". I then created an ABS 3-way manifold to distribute the return via 2 x 1" WavySeas and a 1" lockline combination outlet. We used SpaFlex for the majority of the plumbing runs. Proper gluing protocol is an absolute MUST if you wish to attempt this.
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