There is something so confusing. Some web sites mentioned when the sediment filter is very dirty. It can make water harder to pass through. Some mention as the sediment filter traps more dirt, rust, it becomes more effective filter.
On the other hand. I read some web sites mention that when sediment filter is full or so dirty, the rust and dirt can pass through them and get into your faucet, etc.
What is the truth of it? I'm referring to sediment filter where the water is pushed from outside wall to the inside like the following illustration. How does it exactly filter when it is already so dirty? Does it just lessen water or make rusts pass through it? How?