![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
![Screw Thread Cold & Hot Water Mixer Shower Faucet Shower Room Tap 2/3/4/5 Way New Knob Handle Shower Diverter Easy Installation - AliExpress Home Improvement Screw Thread Cold & Hot Water Mixer Shower Faucet Shower Room Tap 2/3/4/5 Way New Knob Handle Shower Diverter Easy Installation - AliExpress Home Improvement](https://ae01.alicdn.com/kf/H7e2b3e3948e84aedb4256dd1f2ff19b9R/Screw-Thread-Cold-Hot-Water-Mixer-Shower-Faucet-Shower-Room-Tap-2-3-4-5-Way.jpg_640x640.jpg)
Screw Thread Cold & Hot Water Mixer Shower Faucet Shower Room Tap 2/3/4/5 Way New Knob Handle Shower Diverter Easy Installation - AliExpress Home Improvement
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.
![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
![Shower Faucet Set 8 Rain Exposed Pipe Shower 2 Double Knobs Handle Chrome Polish Triple Function Tub Spout Shower Fixture Combo System Unit Set : Amazon.co.uk: DIY & Tools Shower Faucet Set 8 Rain Exposed Pipe Shower 2 Double Knobs Handle Chrome Polish Triple Function Tub Spout Shower Fixture Combo System Unit Set : Amazon.co.uk: DIY & Tools](https://m.media-amazon.com/images/I/71OyjnR49HL._AC_SY355_.jpg)
Shower Faucet Set 8 Rain Exposed Pipe Shower 2 Double Knobs Handle Chrome Polish Triple Function Tub Spout Shower Fixture Combo System Unit Set : Amazon.co.uk: DIY & Tools
![How do I fix a shower mixer so I get hot water without turning the knob all the way? - Home Improvement Stack Exchange How do I fix a shower mixer so I get hot water without turning the knob all the way? - Home Improvement Stack Exchange](https://i.stack.imgur.com/BE2zUl.jpg)