Response to Hi, Kiriam. Confirm that the Waterfall pump is actually still running. If it is, then there is an issue with the Aux Relay that controls that pump. 

An image is worth 1,000 words! Add an image or two to your comment to help ensure it is understood accurately.

Yes, please email me exclusive discounts, swimming pool tips and helpful how to guides. This comment may be posted on a public site. Do not include: HTML, references to other retailers, pricing, personal information, or any profane, inflammatory language.