How to disassemble and reassemble a clogged shower head (WaterPik)
How to take apart a waterpik 5 mode showerhead to unclog if you have really rusty water... you could soak it in CLR but who has time for the WAITING?!??
Most multi-mode showerheads likely come apart in a similar fashion. I used an old toothbrush and regular white vinegar to clean it all up. A pipe cleaner might have been a good idea for the smaller holes.