CSI Water Treatment introduced the Sidekick single tank aeration filter. The Sidekick is ideal for treating trouble water including iron, manganese and sulfur, and is superior to other aeration systems on the market because it does not oxidize the iron until water enters the top of the media tank, ensuring the control valve remains free of iron build up and the associated problems. Contact CSI at (419)281-6829 or www.csih2o.com.