DIY- Ultra Beckett

Here's my design as it stands right now. My questions are:
-What is a good collection cup size?
-Riser tube top to cup top, is there a good distance to get the foam to hit and go down into the cup?
-What is the riser length based on? How long should I make it?
Thanks and enjoy.
 

Attachments

8" riser tube

8" riser tube

after spending three days driving around to plastic stores, does anyone have a spare 30" of 6-8" diameter acrylic riser tube,
I would gladly pay for some, can't find any thanks
joe
 
tubing

tubing

Walter,
THANKS THAT IS AWESOME! I will give them a ring tomorrow and let you know what they have and pricing.
THANKS
Joe
 
Very nice captain. Hope the Recirculating design works out well. If it does, do you mind if I build one according to your specs captian...I don't think I'd ever use it on my tanks because they are all nano and would probably give it to my friend...just want to build to learn. =D
 
rkl- go for it. That is why I post stuff up on here. As a matter of fact why don't you build it and let me know what I've gotta fix. :) :eek2:
 
Haha don't have the money for it, just yet, maybe in another month or two...and I gotta find an engineer at the university that can use the machine shop for free so I can get him to fabricate some flanges for me and a couple other things. They have a nice laser cutter there and CNC(I used to be in the engy school so I know the stuff there) or I could always ask the head guy to use the shop.

But I have a question on your design captain.
I was just wondering do you think that the bubbles might have an opportunity to sit in the base for too long and thus join, making a larger bubble(which might cause a burp)(especially if its sitting on an uneven surface)?

I know in Zeph's monster skimmer he joined the reaction chamber with the feeding tube via 2 90 degree bends making it a U which makes it so the water never really sits except for the possiblity near the mouth of of a beckett injector tube.

Also I have just a regualr skimmer question.
Is there any reason why skimmers, possibly just the beckett skimmers, are set so that the bubbles go strait up the reaction chamber rather then a rotating movement?

I mean it seems to me since we already have the water moving at a high velocity we could increase the reaction time by forcing the water to move in a rotational movement in the reaction chamber thus allowing for more bonding time or does the beckett skimmer already have lots of rotation movement or is rotational movment bad?
 
laser and cnc, very nice. I don't really know what the min velocity is before the bubbles start to join, but I don't think my chamber is too big so hopefully it won't be a prob. let me know how the flanges work out on the laser. Are you thinking of CNC quick release? On the rotating thing a few designs do incorporate it, but I believe zeph explains why it isn't a benefit on his site, so check it out.
 
Not sure what you mean for CNC quick release. My DIY work is very little.

As for the air bubble problem of joining, I was actually thinking about where the area where water is moving at a level area(in the base, which may not be level causing the problem but I guess everything could always be solved with a larger pump) where the air might get stuck and not in 6" Diam Chamber. I would think the movement of air upward would stop bubbles from joining in the 6" Diam Chamber.

The 6" chamber is also where I was suggesting creating the swirl rather then the injection chambers but I guess its all the same...

Zeph can you explain the physics invovled of why it doesn't make a significant impact...I can believe you but just can't see what ideas of physics makes you conclude the way you do.

The only way I could see the swirling motion not become more effective is if its not possible to create really good swirling motion. Or that the beckett skimmer has already hit near the efficient point so well that the motion is just excess
 
Maybe I'll have a go at explaining it seeing as i have done a lil bit of flow dynamics.

1. no matter how much u swirl it the flow rate out is the same right?

2. If this is the case then the water isnt in contact with air longer but it moves faster to cover more distance ? ie the circular distance rather than linear distance.

so if u do swirl it your making more turbulence and higher velocity but not more contact time.
 
When I had problems with burping I ended up replacing the 3" dia downtube with a 2" dia to increase the water velocity and carry ALL of the air out and to the riser.

BTW I am using an Iwaki 70 to makje sure I have plenty of push. I wouldn't use this pump again for that but it works and it was a pump that I already had.
 
You've got it Rodjer- :)

I've found an Iwaki 70 is a little too much for a single Beckett, and not quite enough for a dual. The 50 is great on a single, and the 100 on a dual, but they are not the quietest pumps.
 
<a href=showthread.php?s=&postid=8798150#post8798150 target=_blank>Originally posted</a> by Zephrant
You've got it Rodjer- :)

I've found an Iwaki 70 . . . . . .they are not the quietest pumps.
Click to expand...

Amen Brother. For the cost of these babies I am very disappointed in their overall performance, noise being the very least impressive. :eek2:

AND . . . I own this page. A first for me. I have found it is the simple things in life . . .
 
Ok hope this works.. first time posting pics here. My first DIY dual beckett skimmer, inspired by your monster skimmer thread. I am running this with a hammerhead pump and like the way it skims
007.jpg

009.jpg

010.jpg

011.jpg

014.jpg

015-1.jpg
 
I have been following both threads, as I have been making plans to build a skimmer similar to the one in Zeph's original "monster beckett" thread. I have a 180 gallon tank(reef - sps), that I will have heavily stocked, which will have around 250-280 total system gallons. I am going to have a refugium and a prop tank for it, included in this volume. You stated that your original monster beckett would be sufficient for up to a 500 gal. system. How would it fare on my planned set up? Should I make plans for a larger skimmer?

Nate
 
Always gotta add the wife to the tall skimmer photos. I tried, but did not get full cooperation. I asked for a smile and the Vanna look... and instead got a frown and a "be happy with what you got" comment.

My question would to those who have used these monsters and modern NW monsters.. do you guys feel the beckett is still viable? IE is the increased power consumption efficient in terms of increased skimming over the NW designs?

Bean
 
I'll add my 2 cents Bean. My skimmer is a combo unit with a beckett head and a NW pump as well. (I'll post a pic in a minute) For the power consumption I think the NW beats the beckett hands down as far as skimming capacity. I see no reason why a NW pump couldn't be used in addition to a taller main tower and then a smaller recirc pump used to return water to the sump (I prefer the out of sump design)

I wish I had a kw meter to get some actual numbers but I am pretty sure my Iwaki 70 is a power hog.
 
Let me qualify the picture here; ahem. My FIRST attempt with acrylic work AND my first attempt at a skimmer. One year ago today I hardly knew what a skimmer was so from the time I first put this little baby together to the present picture it has undergone a few ghetto type transitions.

Anyway in the front is the NW pump and to the right you can see the beckett head and enclosure. I don't mean to take away from its effectiveness, the thing churns dark butter but we all want the most cost effective and energy efficient system we can get I think.

needlewheelandbeckett.jpg


:rollface:
 
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