From what I can find out it looks like you have the 3600 (36 sqft) Micro Clear DE.
It's hard to tell because I can't find a manual for it. Once you open it up you can tell. The 2400 grids are 12" tall, the 3600 grids are 18" tall, the 4800 grids are 24" tall.
What happens if you turn the 3-way valve in front of the pump oposite of where it is now?
It's hard to tell because I can't find a manual for it. Once you open it up you can tell. The 2400 grids are 12" tall, the 3600 grids are 18" tall, the 4800 grids are 24" tall.
What happens if you turn the 3-way valve in front of the pump oposite of where it is now?