How do you clean your bathroom?

I had Candida a yeast overgrowth oral thrush the sink faucet I had it for over ten years and the handle it popped off and it had mold! The water was black no wonder why I brush my teeth tongue with that water

I clean my shower, sink, bath etc but I want to know how do you clean the pipes leading up to your sinks and showers

I opened a round cover in my bath and it had mold in it and I'm wondering how do I clean the bathtub shower sink etc.

How do you guys run maintenance in your household