Optimized Beckett

thanks rgibson...well it sounds like this mod should work great on a newly acquired mr-2 with the second injector...it came with a gen-x pc-55hp,but i thought that might not be enough pressure for 2 injectors....so this trick should work good for me....
 
<a href=showthread.php?s=&postid=8870583#post8870583 target=_blank>Originally posted</a> by sgolden
ok guys, im sold on redrilling my beckett, but i wonder ...is there a benefit to a taller downpipe between the injector and the skimmer base? (longer contact time)....and would it help if the downpipe was of a larger diameter? causing less velocity and allowing the bubbles within the downpipe to rise again and again till the bubbles were "heavy "with proteins??
Click to expand...

IMO the answer is no and no. Both the too tall injector pipe and the too large of diameter will greatly reduce the effectiveness of your skimmer. It also adds the large burps and in some cases will entirely eliminate the small bubbles from rising in the main larger chamber. You may have to experiment like I did. Lots of wasted plastic and time but it finally works.

AND I think the jury is still out on re-drilling the beckett head, OR if you do re-drill it please set up an accurate base test and share the results with us. :rollface:
 
im about to....but i want to clean everything up and put valves on each of the injectors.....and run for a few weeks as a baseline...
 
This is a great thread. I just bought my first tank and skimmer, the tank is a 120 and the skimmer is a 5220 Barr Aquatic dual beckett. Simply, the skimmer seems a bit large, but I'm wondering if this mod will make it seem juuuuust right. I guess I'll have to wait and see. Has anyone using this mod actually been able to scale down from one pump to another as a result?
 
Ok I've read the entire thread.
This sounds great and I'm going to try with some of my spare becketts.
My question is about hole height.
should they be in a straight ring aroung the beckett at the same height as the top of the stock holes?
Does that make sence?

I'm running a PM bullet XL with a Blueline 70, has anyone done this to the same skimmer.
If so how many holes and what size worked best?

Kedd
 
<a href=showthread.php?s=&postid=8942692#post8942692 target=_blank>Originally posted</a> by whiteice669
this may be a stupid question, but does the injector need to be installed vertical ? or will it work horizontal ??
Click to expand...

Actually it's not a stupid question at all. I had never given that a thought but as you mention it it might be worth testing, that is if your application benefits from it. That might be for space considerations or installation considerations.

The water that tends to pool in the beckett housing might be a concern but it also tends to re-injects itself via the holes in the beckett. This setup would be easy to test, just use a hose on a spare beckett and set it up so you can observe the action.

I'd like to see if this works. Please post some pics if you decide to try it.
 
I am setting up a 180, and plumbing in a beckett II clone, but it would be way easier if I could install in injector horizontal, but want to make sure it would still work
 
whiteice669
I don't think it will work because of the water pooling at the bottom, which would cover half of the holes.

Does that make sense?
HTH
 
<a href=showthread.php?s=&postid=8889146#post8889146 target=_blank>Originally posted</a> by sgolden
im about to....but i want to clean everything up and put valves on each of the injectors.....and run for a few weeks as a baseline...
Click to expand...

You bring up a good point. I don't mean to pick on you, but I have some thoughts about the correct way to test the difference between the stock Beckett and Waylander's mod. I should point out that In my hurry to get my skimmer up and running, I failed to test my becket using the method below. I did the unscientific thing of just drilling holes and trying it. It produced more bubbles than I had seen before using other any injection means, which made me very happy and I haven't questioned it since - till now.

The most accurate way to test this, I think, would be to run two identical systems simultaneously. One with the stock Beckett and the other with Waylander's mod. This should be the only difference.

In reality the test should be conducted several times with different pressure rated pumps.

The flaw in running the system for a while to get a baseline first is that the assumption is that nothing changes in your system may be incorrect. Spawning events, different feeding schedules and products, different evap rates, death of something you cant see like a sponge under some live rock somewhere) Coral splitting, macroalgae cycles, varying water change schedules. There are a lot of things that can change from one day to the next that will effect skimate production and bubble generation. The only way to eliminate all these variables is to run the tests at the same time on the same water.

Even if you are running two successive tests, it is difficult not to get your hands and arms in the water when performing the switch between the beckets. The oils from your skin will effect skimmer operational performance which makes it difficult if no impossible to compare the before and after. The results will be skewed.

I realize this is both cost and sometimes space prohibitive, but it would be nice if someone has the resources to do this kind of test to look at results. I don't have the space for two skimmers besides the fact the my skimmer pump is set up very uniquely and can't be duplicated. Nor do I own several pairs of identical pumps.

Anyone care to comment on how to setup the ideal test. Anyone else have enough equipment laying around and the space (and time) to run a test or two?

Just my $0.02
 
<a href=showthread.php?s=&postid=8960736#post8960736 target=_blank>Originally posted</a> by Keelay
The flaw in running the system for a while to get a baseline first is that the assumption is that nothing changes in your system may be incorrect. Spawning events, different feeding schedules and products, different evap rates, death of something you cant see like a sponge under some live rock somewhere) Coral splitting, macroalgae cycles, varying water change schedules. There are a lot of things that can change from one day to the next that will effect skimate production and bubble generation. The only way to eliminate all these variables is to run the tests at the same time on the same water.

Anyone care to comment on how to setup the ideal test. Anyone else have enough equipment laying around and the space (and time) to run a test or two?

Just my $0.02
Click to expand...

Perhaps running multiple series of tests would help cut down on unkown variables. A set time with one, switch and run the same time on another, then switch back and do it over again, possibly multiple times, this might give you better (and more acurate) test results.

-Dave
 
Can't prove anything since I have no way to test but I moded my 30in Aerofoamer. It is 8in diameter x 10in tall main tube going into a 4in diameter x 10in tall top tube going into the collection cup. It has one beckett driven by an Iwaki MD 55 RLT. I drilled approximatly 20, 1/16th holes. I couldn't get any skimmate unless I ran the water level up to about 2 in from the top.

Now I get lots of dark skimmate running water level about 6 in from the top.

Does this make any sense?
 
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