Does Animal Pump Pro clump up? Rudy Checo December 29, 2021 15:54 Updated Clumping Animal Pump Pro is formulated with ingredients that absorb moisture which can lead to powder clumping. This is normal and the product is okay to consume. If you have further questions please reach out to our support staff at firstname.lastname@example.org or send a contact request here. Related articles Can I take the Foundational Stack year round? Comments 0 comments Please sign in to leave a comment.