I've been using the reel "twirler" that comes with plastic tanks/reels for about 25 years with no problem. Four gentle back-and- fourth twists that alst 5 sec. every 30 sec. I've used stainless reels in the past. I liked the reels but hated having to lift the tanks out of my water bath to invert. So messy!(posted 8801 days ago)