The Hydra good deal slider is disabled at least temporarily. What it did was constantly monitor the Amazon Warehouse for new listings and stream them directly to your browser — no refreshing needed.
The Hydra currently only monitors Amazon.com Warehouse listings. The following link will take you to their site if you would like to check if it is re-enabled.
Related Post: Here is another way to look at the Warehouse Deals On Amazon.com that is currently working well.