Engineering editorial · Updated 2026-09-18
The short answer
Determine branch flow at the actual lift and distribution losses, then confirm compatibility with the nutrient solution.
What to check
Record reservoir level variation, particles and service access. Confirm cleaning methods and whether the pump needs a flooded inlet.
Make the comparison meaningful
Record supply voltage, medium temperature, circuit arrangement and the measurement location. Compare candidate pumps under the same conditions. Maximum flow, maximum pressure and a single noise value do not describe a complete working point.
Before you choose a model
Ask for the current specification, performance curve and approved operating limits for the exact variant. Agree on the test method and acceptance criteria, then validate a sample in your equipment. This guide describes selection principles, not verified performance for a Shan Neng model.