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Old 01-13-2005, 06:07 PM
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SuperFudge SuperFudge is offline
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Brad, you could be right...i was under the impression a mag 18 was a pressure rated pump...?
lol, yes it was a 1/2 horse spa pump, but i also used it on a 50" Quad injected skimmer.

I hadnt seen the pic of his skimmer, but if i just take a beckett on its own, it doesnt need anymore than a mag 18.....but the skimmer design would play a large role in the correct pressure to run it. ( such as is in Tarolisol`s case)

I have never used one for that application, but I know jamie uses a mag 18 on a beckett skimmer that i had built ,and he is using...it stands at 43" high and is dual becketts....while i would say it is a bit under powered, it is working just fine at litterally half the flow...but by the same token it is being run like a normal beckett skimmer, And Tarolisol cant with that design.

Sorry Tarolisol, i hadnt looked at the pic, i just did...

With a normal beckett skimmer the water height would be at the base of the reaction tube.

The problem in yours i believe, is that the reaction column is too high for for that pump, when the column is partially filled with water ( wich it would need to be in your case being that tall of a chamber to get foam to the cup) it is creating WAY more back pressure on that pump, than if the water were at the base of the column.


You can check if this is the problem, just let the water flow out of the skimmer reaction tube until its at the base of the column...then look at the beckett...it should be operating normally, less spitting (a little is normal)...and better flow and bubbles down the injection tower.

So yes, you do need a bigger pump, Or you need to cut that one down...if it is contact time you are worried about, then atleast leave the injector tower as is, and cut the other.

And yes, its normal for the beckett housing to fill with water, as a beckett itself is not watertight.
But the reason for it filling real fast, is because of the "spitting" and the back pressure...this will be corrected with the changes made.

Marc.
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