![usability - Why do showers have "hot" and "cold" knobs rather than "temperature" and "quantity" knobs? - User Experience Stack Exchange usability - Why do showers have "hot" and "cold" knobs rather than "temperature" and "quantity" knobs? - User Experience Stack Exchange](https://i.stack.imgur.com/oYOCO.jpg)
usability - Why do showers have "hot" and "cold" knobs rather than "temperature" and "quantity" knobs? - User Experience Stack Exchange
![Constant Temperature Shower Faucet Wall Mounted Chrome Double Handles Faucet Bathtub Valve Faucet Hot & Cold Water Mixer Tap - Shower Faucets - AliExpress Constant Temperature Shower Faucet Wall Mounted Chrome Double Handles Faucet Bathtub Valve Faucet Hot & Cold Water Mixer Tap - Shower Faucets - AliExpress](https://ae01.alicdn.com/kf/HTB1TG9rfHZnBKNjSZFGq6zt3FXab/Constant-Temperature-Shower-Faucet-Wall-Mounted-chrome-Double-Handles-Faucet-Bathtub-Valve-Faucet-hot-cold-water.jpg)
Constant Temperature Shower Faucet Wall Mounted Chrome Double Handles Faucet Bathtub Valve Faucet Hot & Cold Water Mixer Tap - Shower Faucets - AliExpress
![bathroom - How to replace old separate hot/cold bathtub knobs with modern option - Home Improvement Stack Exchange bathroom - How to replace old separate hot/cold bathtub knobs with modern option - Home Improvement Stack Exchange](https://i.stack.imgur.com/PiMR0.png)
bathroom - How to replace old separate hot/cold bathtub knobs with modern option - Home Improvement Stack Exchange
The water in my shower changes from scalding hot to freezing cold while I am in the shower. This happens after I replaced the stems and the seat for the three faucets.
![Silver Faucet With Hot And Cold Water Options Stock Photo - Download Image Now - Shower, Handle, Cold Temperature - iStock Silver Faucet With Hot And Cold Water Options Stock Photo - Download Image Now - Shower, Handle, Cold Temperature - iStock](https://media.istockphoto.com/id/121184901/photo/silver-faucet-with-hot-and-cold-water-options.jpg?s=612x612&w=0&k=20&c=o3Ctk9rik6bqIDUAfXuJZA0AqDu0fL_2B1djADPubkc=)