my diy needle wheel dart pump

[Bill Wann]

I think its about 18 inches or so .

 

[vic8361]

I've been folowing this thread from the bigging and you've guys have come a long way. Looking forward to seeing these skimmers in action with so much less power consumption. Way to go guy's
Wondering if using a blower on the smaller pumps will help as well.

Vic

 

[ronc98]

super impressive. Now that is ALOT of bubbles

 

[Sparkss]

just out of curiosity, have you considered making teh NW on the CNC out of a solid block ? Would that be easier or harder than gluing all of the pins ? Especially since you and spazz now both have monster CNCs. Thanks for sharing your experiences, it has been a wonderful thread to follow.

 

[Bill Wann]

Here are some pics of Scott over at my house . Had lots to talk about .

 

[jnarowe]

LOL...couldn't keep him out of the car eh? I have a buddy with a mint Delorian he won't drive, or let anyone inside...he'll drive his Jag in a hailstorm, but the Delorian stays in the garage!

He looks good in the tube too. Like a cat that just ate a canary.

 

[Roland Jacques]

<a href=showthread.php?s=&postid=7026328#post7026328 target=_blank>Originally posted</a> by spazz


the dart cant push the bubbles down that long of a pipe with out the bubbles breaking and combining into bigger bubbles.

That's to bad. do you think thiers no way around that? mayby a little back pressure would hold the bubbles together better, like on the end of the 2"pipe have a 1 1/4" opening. maybe a smaller dia pipe to keep the bubbles moving faster? just a thought. i just really like the simplesty of less equpiment.

thiers some Rk2 12' skimmers down here that need your dart NW bad. it sad when i look at them 32" dia and you can almost see though them.

Roland

 

[Lunchbucket]

HOLY CRAP!! now that is some bubbly water!!

can't wait to see this thing

Lunchbucket

 

[Snarkys]

wow !

 

[honey]

Re: my diy needle wheel dart pump

<a href=showthread.php?s=&postid=6322173#post6322173 target=_blank>Originally posted</a> by spazz
well im sure there are alot here that have been keeping track of the thread about the needle wheels that sequence is having designed. the engineers are working with one of the 1000 series pumps to creat a masive needle wheel pump. the big flaw there is that the pump draws 398 watts! i think they need to use the dart pump for a needle wheel. so i created my own version of it.

Any update on their NW? did they actually go any further with it, or is the whole thing on stand-by? We are waiting for updates from their side since november 2005, and then they also dropped their forum here on RC.
Did they finally make you part of the NW developing team, or at least sent you one of theirs for you to test and give them your input?

Since you have done such a great advance on yours in this time period, I'm wondering what is happening at their end, if anyone knows?

Would you say your NW design is ready to be used or do you still have to put much more work on it? Or from now, it's more on the skimmer design than on the NW itself?

thanks a lot, and again, a big applause

Hon

 

[gobygoby]

HEY!!! Did you sneak into my garage and sit in MY ferrari?


Very nice.

can you leak some specs on the needle wheel?

diameter of the disk.
dia. of the needles
hight of disk and needles?

Thanks again! and great job. Seems to me that a single dart skimmer would kick the ^&*)# out of a large recirc skimmer such as an ER 1000 or a BK!

 

[ctenophore]

I'll give a quick update on the needlewheel we are working on for MDM/Sequence. As spazz mentioned, we are working on needlewheels for two different pumps, the 1000 series as well as the 750/dart. We have functioning needlewheels for the dart, but we are redesigning our current version to make it cheaper & easier to produce.

As spazz mentioned, building the prototypes is very labor intensive. We use a laser table to make ours; a cnc would work too. The needlewheel really needs to be molded, but that is pricey to commit to until the design is perfected.

 

[gobygoby]

Well hurry up and start producing them!! because I want one


.......did I hear you say Beta Testers??.....


j/k:bum:

 

[hahnmeister]

Yeah, Ill BETA test on my 72" tall, 18" diameter monster I am building...

 

[roni]

i'm happy to beta test anything you guys put out

 

[asnatlas]

<a href=showthread.php?s=&postid=7020252#post7020252 target=_blank>Originally posted</a> by Bill Wann
Thats a great thread , lots of info . would it be possibe to dend a picture of what the air intake looks like ,mainly how it enters to tube and what it looks liek inside . What is red tube from the pump housing to the motor for ? Pressure equalization maybe ?
Thansk again for the help .

<a href=showthread.php?s=&postid=7020384#post7020384 target=_blank>Originally posted</a> by Travis
I will let asnatlas be responsible for the air intake pic as his is not up and running yet. The red tube is called the "anti-calcium bypass". It works by constantly lubricating the impeller area with water to prevent calcium deposits due to the heat friction.

Iââ"šÂ¬Ã¢"žÂ¢m not sure how I missed these replies... I was going back over the thread and found them... I will try to get some pics tonite for you guys...

 

[jnarowe]

My skimmer is built!

This is what an Alita 100 can do through 8 wood 3" stones.

The only major issue is that I am gravity feeding so there is some air being drawn in and sometimes very large bubbles as a result. At least I can run wet while I cure and think about a NW mod.

 

[onetrickpony]

cool skimmer
could you put a -T- fitting with a tall riser before it runs into the skimmer
that way it could bleed off any extra air
ken

 

[jnarowe]

Actually I shut the other return lines down to the point that the water level in the overflow was above the inlet screen and it did not change the bubbles in the skimmer. I built it this way so that I could tune the intake as well as the output.

I think what may have happened is that one of the stones blew off when I started it up because I am getting some large bubbles coming up from deep within the skimmer. I am not going to mess with it now since it is really smoking and the tank has already cleared up quite a bit in the first hour of operation. When I get back from vacation I'll pull it apart and checked the stones.

Those pictures are from right when I turned the skimmer air pump on. It started making foam within about 30 seconds. Gotta love that Alita air pump!!! Right now the skimmer is drawing 120W. That's it! And I am getting great flow.

 

[zapata41]

how do you like the noise from the alita. i have a medo that is way loud, also pulses, i think, which sucks. looking at a alita60

Tim