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Don Cotyle
I've been useing bubble wands for the last few grows for the same reason. Kinda like the tube end but with alot more surface area. After harvest when removeing roots to cleanout your tub toss em but save the glued in mounts. I always replace the wands and pump. They run about $5 for a set and $10 for a double outlet pump at Wall Mart...not much fun trying to replace em tangled in a giant root mass.
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