From what I hear this pump is suppose to be one of the best on the market...
at the Hydor L30.
I wanted to test the head volume of the units for myself. I
got tired of everyones opinions on pumps and wanted to see for myself.
This is not an exact test but it is extremely even and fairly accurate. I ran
out and bought 10ft of cheap vinyl ½ID tubing. I mounted the top
portion of the tubing to the top rail of my deck and the bottom connected to
the pumps top exhaust. The tubing was rearranged to make sure the pump sat on
the bottom of the bucket and the tubing had as little movement as possible;
vinyl tubing takes some work to get it back into shape after being on a roll.
I marked the tubing every ft with neon orange paint and I poured 1gal distilled
water into the bucket. I also used a bright dye for the water to make it visible
in the pictures.
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