Another big becket skimmer

No, not putting any valves on the water inlets on the injectors. The water going to them will be straight off the pump. I will have one on the feed from the tank though.
 
Rgibson,

I think you are wrong in that the becketts will not be driven properly unless there are separate controls for each beckett.

If he drives each beckett to about max capacity or at its plateau then flow should even out since water will always travel down the path of least resistance so instead of trying to squeeze more water through one beckett, the flow will just divert to the other beckett until an equilibrium is reached.

Of course, this above scenario only really occurs if the becketts are being driven to capacity to allow for this phenomenon to happen.

Peace,
John H.
 
<a href=showthread.php?s=&postid=7603527#post7603527 target=_blank>Originally posted</a> by rufio173
Rgibson,

I think you are wrong in that the becketts will not be driven properly unless there are separate controls for each beckett.

If he drives each beckett to about max capacity or at its plateau then flow should even out since water will always travel down the path of least resistance so instead of trying to squeeze more water through one beckett, the flow will just divert to the other beckett until an equilibrium is reached.

Of course, this above scenario only really occurs if the becketts are being driven to capacity to allow for this phenomenon to happen.

Peace,
John H.

DAAAANG. He just came out swinging...didnt he...??? "I think you are wrong"...lol. I wouldnt go that far rufio. I think he is right. Water likes to take the path of least resistance...and the dynamics in one injector might be different than in another simply due to turbulence. All it would take is a clump of algae or slime buildup to cause one to be more restricted than another...

Also, what if the pump he uses isnt large enough...or he decides to use only 2 of the 4 injectors for a bit? Having a valve there to shut off one or two injectors would be nice...
 
<a href=showthread.php?s=&postid=7822457#post7822457 target=_blank>Originally posted</a> by hahnmeister
DAAAANG. He just came out swinging...didnt he...??? "I think you are wrong"...lol. I wouldnt go that far rufio. I think he is right. Water likes to take the path of least resistance...and the dynamics in one injector might be different than in another simply due to turbulence. All it would take is a clump of algae or slime buildup to cause one to be more restricted than another...

Also, what if the pump he uses isnt large enough...or he decides to use only 2 of the 4 injectors for a bit? Having a valve there to shut off one or two injectors would be nice...

I guess it was a bit harsh, although not meant to be that way. :)

The truth lies somewhere in the middle. The valve is always a nice thing to have, but then again it wouldn't really make a huge difference if algae or debris did get stuck in the injector since the extra capacity would shunt to the other injectors and when driven to full capacity, the injectors to which the water is shunted shouldn't really be affected. Turbulence, if it plays a role, is minor at best if all injectors are molded the same.

Anyways, the valves are nice since if you just want to clean out one or another injector, then it'd be nice just to shut off that one injector to clean out the thing. However, you wouldn't really know if there was a lot of debris in there unless it was severely blocked or you had an airflow meter on each individual beckett housing.

Peace,
John H.
 
<a href=showthread.php?s=&postid=7823807#post7823807 target=_blank>Originally posted</a> by rufio173
I guess it was a bit harsh, although not meant to be that way. :)

Anyways, the valves are nice since if you just want to clean out one or another injector, then it'd be nice just to shut off that one injector to clean out the thing. However, you wouldn't really know if there was a lot of debris in there unless it was severely blocked or you had an airflow meter on each individual beckett housing.

Peace,
John H.

Hey I don't think you were harsh at all, your opinion was not a personal attack, it was a disagreement. Now when Chevy Chase used to disagree with Jane Curtain on Saturday Night Live, THAT was an attack. "Jane you ignorant butt . . . . " or something like that. Ahem. May be before your time.


Anyway, after giving this issue some thought I tend to agree with you. I completely agree that the water balance works on the principle of equal pressure drop, that's why we put balance valves on in the first place. The difference in flow will be miniscule at any rate. Of course it would be nice to have balance valves, it would also be nice to have balancing orifices to measure equal pressure drop but it's also nice to keep it simple.

I think a bigger concern will be with water feedback into the air intake housing but until it's started that will be hard to determine. I like this beckett design, it may be a little extreme but I thinks it's cool.

Carry on.
 
Okay, like many conversations here at RC, you know dang well that there are some things people say in type that they would never have the guts or decency to say face to face.... you just dont walk up to someone and say that...lol. I think that people often times overstep because the consequences are minimal...but just keep in mind that you might run in to some of these people at the next convention, MACNA, etc...and then what are you going to say to that 6' 8" 280lb bruiser whom you simply 'disagreed with' but decided to 'treat like a moron' instead? Im not saying that that hapened here... just the general idea though.

Back to the skimmer....
 
hahnmeister,

I know for a fact that Rgibson isn't some crazed maniac that will get all in a huff and puff if I disagree with him on something as trivial as fluid dynamics. Hehe :)

As for someone who would get into a huff and puff over something like that and possibly think of physically harming you, well, I'm not sure they would be at a MACNA or any reefing conventions as I'd like to think that most reefers at that stage would have some amount of self control and restraint. Haha ;)

However, you are right, I did say that you are wrong... instead next time I will say, I THINK that you are wrong in this case.

Peace,
John
 
Well you're both wrong and I am 6'-8" and 280 lbs. Truth is if I saw you at MACNA or anywhere else I would enjoy chatting with you and I am CERTAIN there is much more we would agree upon than disagree. But if not, we can still be friends.

I for one enjoy the differing opinions and sometimes we get a little too sensitive when we feel we are singled out. I know that I have been guilty of that at times and if I ever do offend someone here it is not on purpose and I will apologize if noted.

I agree hahnmeister, lets get to the skimmer now. BTW, I am not 6-8 but I am closer to the 280 lbs than I should be.
Well at least closer than I am to 100 lbs.

That's all I have to say about that.

Carry on brothers
 
You guys had me laughing. No, I havent done anything with the skimmer in a whilw except bring it to the garage. Maybe this weekend I can finish it up and get some water in it. I think I said that about three or four weeks ago too.
 
"hahnmeister,

I know for a fact that Rgibson isn't some crazed maniac that will get all in a huff and puff if I disagree with him on something as trivial as fluid dynamics. Hehe "
-rufio173

what are you talking about?

"Well you're both wrong and I am 6'-8" and 280 lbs. Truth is if I saw you at MACNA or anywhere else I would enjoy chatting with you and I am CERTAIN there is much more we would agree upon than disagree. But if not, we can still be friends. "
-Cuby2k

Here here! Im all for a good argument and some real fact finding... some people get upset even at that idea though. So youre part of the Big&Tall Reefer Club as well, huh? Yeah, people usually freak out when I show up at their house to trade corals (if they havent seen me before, or forget who I am or something)... they look at me like Im going to hit my head on the door header and bring down their house or something. And then I bring my 7'0" 300lb cousin with... and its kinda like 'home invasion'. I suppose its somewhat warranted...he did break the door off of a pickup truck once as he was getting in it...

blfuller123, so nothing new with the skimmer...what are we supposed to do in the meantime? You have 3 weeks... then Im in Atlanta again on business and I will come find you... (and finish building it myself, lol):crazy1:
 
this is an interesting design to say the least. the only thing i would have done different is having the beckett injectors mounted at the same hight as the water level in the skimmer. i think you will find that a big bubble forms in the top of the mixing pipe. i cant wait to see this monster running. it should puke out the foam. lol
i think it should be called the puke monster. :lol:
 
You are right Spazz... I thought it looked odd, but I wasnt sure.

It would work if the pipe area coming out of the becketts was smaller, but a larger pipe, and then pumping in at a relative negative pressure compared to the water level in the skimmer body... uh oh is right.
 
<a href=showthread.php?s=&postid=7828990#post7828990 target=_blank>Originally posted</a> by hahnmeister
"hahnmeister,

I know for a fact that Rgibson isn't some crazed maniac that will get all in a huff and puff if I disagree with him on something as trivial as fluid dynamics. Hehe "
-rufio173

what are you talking about?

"

What are you talking about?...

I'm just replying to your post bud. I know that Rgibson isn't some maniac that will pummel me for saying, I think your wrong ... if you handle all of your personal disagreements in this way hahnmeister (by using your mass in a threatening manner), I'd worry about how long you'd be on the street. Haha

Anyways, I'll say that I've had reef buddies big and small and I've never been afraid to say, "I don't agree with you" and all is well. They have replied in the same way and I hold no grudges, it all leads to either more information or at least an understanding of different reefing methodologies.

And from now on, please don't trivialize my comments as if you didn't know what I was referring to... it's immature and downright rude.

I really hope I never get you as a patient as I'm sure you'll believe you know much more about your disease process than me. Of course, if we ever cross paths, I hope all will be peaceful and happy. haha ;)

Peace,
John H.
 
Believe it or not, I thought about the height of the injectors. If I do get a big bubble at the top or just decide I dont like the height, it is pretty easy to cut it down to a height that I like. With this skimmer, I wanted to try something I hadnt seen before. You guys are giving me a little more motivation to get her finished up and running.
 
<a href=showthread.php?s=&postid=7831113#post7831113 target=_blank>Originally posted</a> by blfuller123
Believe it or not, I thought about the height of the injectors. If I do get a big bubble at the top or just decide I dont like the height, it is pretty easy to cut it down to a height that I like. With this skimmer, I wanted to try something I hadnt seen before. You guys are giving me a little more motivation to get her finished up and running.

that is a good thought process. its easier to remove some of the current tube than it is to add some more to it.
so what your saying is that we can see pics of it running this weekend?

come on! come on! you ain't got that thing done yet!? ha ha ha ha ha ha

or should we call it the barf master. guaranteed to make you puke just looking at it (well and smelling it) run.
 
you also have another option. that is to add a second section onto the main chamber to bring it up higher than the injectors. that way it will skim better with a bigger mixing chamber.


just a thought.
 
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