artkwan
New member
I have personally experienced this also, and I just started in this hobby. I bought the system used for a fair price, and did an upgrade on the controllers to the wireless kind to be able to do nutrient export mode, and yeah, I have messed up wet sides on the pumps. Live and learn. I am at the point at trying to decide what I should do, rebuild, or get new wetside assemblies.
Art
Art
I am speaking more on the design of the wet side, they all use the same magnets and materials. The mp10 and mp60 practically have the same wet side design and the mp40 kept the older wet side design that has multiple parts that can fail. The mp10 and mp60 wetside has 3 component parts and the propeller shaft axis is supported by the cover which prevents the propeller from wobbling. It is much more stable when performing different modes. It only takes a small wobble to wear out the wet side on the mp40. What is worst is they upgraded the driver for the mp40 to do nutrient export mode but left the badly designed wetside on the pump. If you run the new mp40es in nutrient export mode, the wet side will not last very long. The plastic cover that holds the ceramic bearing in place tends to break and the magnet tend to rub against the back cover. You have to physically inspect the wetside for wear and tear in order to make your wet side last longer. I am speaking from experience.