<a href=showthread.php?s=&postid=15205851#post15205851 target=_blank>Originally posted</a> by reeftec
Jon
I'm not sure if that is the right way of comparing them you are not being very fair with this yes 2cm larger base on k2 but 550lph more air intake on the alpha 200 and also your skimmer cost $50 more than alpha 200 I saw the 2 skimmers at lfs and build quality was by far better on the alpha than k2 alpha is a one piece cone k2 is a rolled sheet , the quality of the seam job is better on atb, I'm not saying k2 is a bad product but you are not making a good comparison
well... I wasn't going to make a direct comparison, but I can.
The K-2 pump is rated at 960LPH, but with a low restriction meter (RMC Series) they pull 1100LPH.
We actually had 1200-1300 LPH on our prototype K-2 and determined that the additional turbulence was not desirable. The K-2 is perfectly matched, body to neck to air flow.
Re: the cone itself... our cone is produced by talented American craftsmen. We start off with 1/4" Cell Cast Acrylic sheet. Then we use a CNC router to cut out a perfect "flattened cone". Then the acrylic goes into the acrylic oven to be heated to the correct temperature, too hot and they burn... too cool and they won't form correctly.
The heated acrylic is formed around a cone shaped mold. After it cools, the inside seam is glued with 2 part clear epoxy. After it cures, the outside seam is glued with 2 part clear epoxy. After both seams cure, they're sanded and then polished by hand with a buffing wheel. That's how we make cones...
It would be faster AND cheaper to vacuum form them OR just use bluish grey PVC sheet and hot air weld the seam. But we wanted to do something that the others DIDN'T do...
Other mfg. may use other methods... including using material like PET-G which is not as strong as cast acrylic in this application (several have already reported cracked PET-G cones) and may be quite thin as it is vacuum formed and may not be "optically clear" as acrylic is.
And regarding the build quality, that's subjective of course and in the reviews of the K-2 several have compared it favorably to the competitor. The Cone is produced on a CNC router table, the StepLess neck assembly on a CNC lathe and the contoured body parts on a CNC mill... right here in sunny SoCal.
And first and foremost... only the K-2 has VBT. And uses 21W of electricity consumption vs. 30-40W. And the US made gate valve compared to the wedge pipe. And the US fittings...
BTW, which LFS did you see with a K-2? Actually I don't believe any SoCal LFS even has one in stock.