Originally Posted by JuleyT
Thank you all for your input. I'll start by changing the filter because we were just in a place with a high mineral content and it's been in for quite a while. If that doesn't do the trick I'll check the filters in the toilets. I'll report back!
If your shower and faucets flow properly, changing the water filter will not fix the problem with the toilets.
My toilet valve (the one Iggy posted a picture of) gets gunked up. It's fairly easy to remove and clean.