Thats a bad one , that mesh runs the whole length on the pipe on the inside. Thats why I always tell anyone asking to be very careful not to catch that when removing the first baffle. If I remember right Nologic had the same problem and had to gut the pipes completely to get it out.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!