?? on brs dual reactor

everybody talks about MJ pumps being crap, but Mine are working 100% and they have been for over a year and a half (used to do FOWLR)
 
Guess it depends on hoe far they have to make the water travel. I have mi e in my skimmer secrion with my reactors 1 foot from it and i half to turn the ball valve half way closed to get the right movement in the gfo.

Edit: How not hoe lol
 
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