Review on Enhanced Homebrew Oxygenation Solution with Integrated Pump by Tammy Thomas

Unfortunately I used this for a batch of seasoning without testing it first. The gurgling seemed genuinely anemic. When I tested it in water in a clear glass, of course almost no bubbles. I hope the yeast got enough oxygen. Luckily I read another review where someone disassembled the pump and flipped the magnetic rocker back a bit. Tested and the difference between day and night is a lot of bubbles! I think it's a lot, but it's very likely that a particular unit needs a refurbishment to work properly, which is why I've only given it 3 stars.