What detergents are approved for use in the GSD4500 dishwasher?
Only detergent specifically made for use in dishwashers should be used. Cascade®, Cascade® Complete, and Electrasol® Automatic Dishwashing Detergents have been approved for use in all GE dishwashers. (Pages 3, 7)
From the official GE GSD4500 Stainless Steel Built-In Dishwasher manual, page 7
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