Spider Pumping Column
10 pack of General Hydroponic spider pumping columns. This part replaces the main pumping column in the General Hydroponics EcoGrower hydroponic system.
How often should I change the hydroponic nutrient solution in my reservoir?
To ensure optimal nutritional availability and freshness, change reservoir solutions completely every 1 to 2 weeks. If needed, top off low reservoir levels with 1/4 strength nutrient solution or plain water.