bc - I am working on some information for you from some local aeration people in Ohio. If you contact these two places in NW Ohio they will give you prices and information on their aeration units. Each has email access via the website. Both have very similar bottom aerators with optional items available to adjust the total quality and price. Each has the ability to provide different types of customer support.

www.ibnature.com
www.ridgeviewfinfarm.com

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