Sediment in Freshwater System - Need Help!

Hi folks. I have what appears to be an orange/rust colored sediment in my travel trailer’s fresh water system. I had been using the freshwater tank without issue, and then filled it up at my last campground and noticed severe discoloration of the water coming out of the faucets and into the toilet bowl. I tried sanitizing the tank with a bleach mixture (I hadn’t really observed the issue to be sediment at that time) and it is still orange water when I run the water pump.

I plan to drain the remainder of the fresh water tank tomorrow and capture as much of the water as I can in a bucket to see if it’s discolored. I can also try using the bypass on my pump to pump what I know to be clean water through the pump and see if it runs clear or not.

Any other suggestions on what to try and troubleshoot, and if it is sediment deposits in the tank, how do I flush it out? That stuff just settles and seems like just filling the tank with clean water a few times might not wash all the heavier sediment deposits out.

Thanks in advance for your help.