As an avid DIY-er, woodworker, mechanic, etc., who has made his own wort chiller, just buy a Jaded Hydra. It's right there next to my Bosch router in tools that over-perform my expectations. It's built like a tank, the bends are tight and no kinks, and it's sturdy enough that I let my heavy duty 3/4" garden hoses just hang off of it without tipping or melting the hose on hot metal. It's performance is nothing short of amazing. The only thing I added was a metal shut-off valve on the supply side, because walking over to the hose bib would cause me to miss my whirlpool temperature.