Dart threadwheel skimmer build
- Thread starter smjtkj
- Start date
That was the big difference between the NW and the threadwheels that I read about on singapore reef. The guy said the more air he added the better it ran. It was almost impossible to cavitate the pump he was using. I think it was a Ehiem 1262. If you look at the pic I took of the volute at the beginning of the thread, I took a bunch of the material out of the volute. The whole raised area is gone and I cut into the outer area a good bit too.
Man I just checked on the skimmer. It is outside on the patio. At 530 today, I put fresh tap water from the water hose and dumped salt in. A couple days ago the skimmer ran for 30 hours with fresh water and vinegar to get out oils etc. I emptied the water and let it dry. Just a minute ago, I go outside to see about 2 inches of tea colored water in the cup. I guess it is iron or something from the miniciple water system! It skimmer fresh salt water with nothing added! Unbelievable!
hahnmeister
In Memoriam
Ohhhhh... you were running it in freshwater before?!?! No DUH it wasnt going to work well... lol. I overlooked that.
Looks very nice. If you are getting 3000lph with the Dart alone, I would say that is just right for a body and neck diameter of those sizes.
Looks very nice. If you are getting 3000lph with the Dart alone, I would say that is just right for a body and neck diameter of those sizes.
Roland Jacques
Premium Member
:lol: :lol: :lol: Wow, that kills me. i was trying to justify a big skimmer so i could biuld one also. your sick mike really sick, but brother your not alone.
You Know your a Reef Neck when you want a bigger tank to match your skimmer :lol: :lol: :lol:
Looks Awesome, :thumbsup:
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The neck diameter is 6 inches and is 8 inches tall. The al-60 as puts out 68 lpm or as Tim the tool man Taylor would say is more power! Arh! Arh! The AL 40 will fit the bill just right I think at 48 lpm at 2.18 psi of head pressure! The beauty is there is not going to be 2.18 psi because the skimmer chamber is only 24 inches tall. So it will get more in the range of 55 lpm or 3300 lph at 40 watts!
Specification
Model AL-40 AL-60 AL-80
Voltage (V) AC 115 (AC 110/115/120 or AC 220/230/240)
Frequency (Hz) 50 / 60
Rated Pressure (bar, psi) 0.15, 2.18
Rated Performance (lpm, cfm) 48, 1.7 68, 2.4 85, 3.0
Rated Input Power (W) 40 60 85
Sound Level (dB) 36 38 39
Discharge O.D. (mm, in) 18, 11/16
Weight (kg, lb) 5.6, 12.5 6.5, 14.4 6.5, 14.4
AL-40 - normal continuous operating range: 0.05 - 0.20 bar
AL-60, 80 - normal continuous operating range: 0.05 - 0.25 bar
Information presented is base on test results from nominal units
Specifications are subject to change without notice
hahnmeister
In Memoriam
I think it stems from the BK external design. Royal Exclusiv claims that the inlet at the top of the skimmer body disrupts the calm flow of bubbles as they make their way to the top, so they eliminate the top inlet to reduce turbulence.
IMO, they are waaay too paranoid about turbulence. Even at that, they could use a large circular spraybar or some sort of diffuser inside the skimmer body to spread out the incoming water. Thats what I would do to make sure I was running some sort of downdraft/countercurrent.
IMO, they are waaay too paranoid about turbulence. Even at that, they could use a large circular spraybar or some sort of diffuser inside the skimmer body to spread out the incoming water. Thats what I would do to make sure I was running some sort of downdraft/countercurrent.
"bubble monster"
i told you when the pump will work you going to see bubble that you have never see before
mow i beleive a lot of ppl will try it to when it's start to skimm it will pull out tons of foam hope you make drain pipe in the cup if not do it soon
you can't beat the foam that this skimmer will produce :rollface:
i told you when the pump will work you going to see bubble that you have never see before
mow i beleive a lot of ppl will try it to when it's start to skimm it will pull out tons of foam hope you make drain pipe in the cup if not do it soon
you can't beat the foam that this skimmer will produce :rollface:
<a href=showthread.php?s=&postid=8380532#post8380532 target=_blank>Originally posted</a> by mavgi
"bubble monster"
i told you when the pump will work you going to see bubble that you have never see before
mow i beleive a lot of ppl will try it to when it's start to skimm it will pull out tons of foam hope you make drain pipe in the cup if not do it soon
BUBBLE MONSTER, I love it!
Scott, I ran it without the diffusor top on and the turbulance was increased. I am not sure how I would measure it, but it was noticable. The wattage did not really change except to bounce backe and forth 1 or 2 watts higher. It still accepted the same amount of air. The Dart is running at 115-116 watts with the skimmer all back together. I am bleeding off about 40 scfh from the al-60 according to the dwyer. So it is consistently pushing about 120 scfh with no problems. I think the Alita 40 will be a good fit.
spazz
New member
ok this answered alot of questions regarding that diffuser style. the diffuser dosent restrict the flow of the pump it just reduces turbulance inside the skimmer. so in the end it will increase the performance of the skimmer by slowing down the bubbles and maybe even increasing dwell time. there has been alot of speculation as to the benifits of all these holes vs larger holes and alot less of them.
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