RO question Vancouver peeps

[Timbits]

Hey guys

So im just wondering how often you guys change your filters
1. Sediment
2. Carbon
3. Di resin
4. Membrane

I just replaced sediment and the color changed to super orange just after couple weeks and maybe 200g

Does this happen to u guys too?
Do I need to change it every 2 weeks then? That doesn't seem right...