We have a pumping system that handles dirty fluids with sticky soft particles. For this reason, we are using semi-open impellors on our centrifugal pumps. Our company performs a project that increases the cleanliness of the fluids, and greatly reduces the quantity of sticky soft particles in the liquid that is to be pumped (a filtration project upstream of the pumps).
Now that the fluid has changed, list 3 potential modifications to the pump that would improve pump efficiency / performance.
If you could only do one, which one would you like to do? Why?