My heart is a Pump?
Here's how our human hearts are closely similar to a pool's pump in a nutshell!
The human heart and pool pump may actually be distant relatives! Though in different worlds, their nature and purpose mirrors one another, and here we have it in a nutshell.
Your Heart & Circulatory System (for Kids) - Nemours Kidshealth. (2018). Kidshealth.org. https://kidshealth.org/en/kids/heart.html
Jender, H. (2019, April 5). How Does a Pool Pump/Filter System Work? Riverpoolsandspas.com; River Pools and Spas. https://www.riverpoolsandspas.com/blog/how-do-pool-pump-and-filter-systems-work