Is it difficult to change the puraDYN® system filter?
No! It should only take a few minutes. On the TF models, loosen four nuts and swing studs down. Move the head casting aside and remove the diffuser plate. Remove and discard head casting rubber gasket. Remove and discard the old filter and rubber o-ring. Install the new filter. Install the new rubber o-ring on top of the new filter. Install the diffuser plate. Install the new head gasket into the head casting. Place the head casting over the diffuser plate, move swing studs up and equally tighten four nuts. On PFT models, using a 1/2″ flex drive handle, loosen the lid by turning counterclockwise and remove. Remove and discard the old filter. Install new filter. Install the lid and using a 1/2″ flex drive handle, tighten lid turning clockwise.