Response to Hi, David. The pump will not leak if the o-ring is not used based on the B2842 motor that you're using. That motor is designed to work with or without an Impeller screw.

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.