Because someone switched the lines or labeling. <
1- Someone installed the piping not bothering to read modern codes requiring water hot and cold to be 6" apart
2- C/W supply to a tank or other heat source does not have the 27" heat trap (loop) to prevent stratification of hot water molecules entering the potable water supply
3- Failure on the part of an installer of appliances that use both hot and cold water supply to have an air gap or vacuum breaker or the very least a check valve
4- Cold water lines picking up ambient heat from the surrounding air or close contact to heating lines
5- Cross connections see #3
cold water tub facuet is corroded bye hard water builtup and needs to be replaced. Hot water is okay. Its the right one with the cold water coming out
Obviously hooked up wrong, or the faucets are mismarked . Usually cold on the right, hot on the left.
if it is a single lever faucet the cartridge needs to be replaced. check the supply valve under the sink first,
If you have an instantaneous hot water heater, and your faucet doesn't flow enough water it won't turn on the water heater. Thus requiring another faucet to be turned on.
To fix a hot water faucet to a washer with no flow, first, check the water supply valve to ensure it is fully open. Next, inspect the hot water hose for kinks or blockages, and make sure the faucet aerator is clean. If the issue persists, detach the hose and check for sediment build-up in the faucet or hose. If necessary, replace any faulty components to restore water flow.
In cold weather, hot water may not come out of the faucet because the pipes leading to the faucet can freeze, causing a blockage and preventing the hot water from flowing.
A hot water heater is designed to supply hot water to faucets, not cold water. It is not possible for a hot water heater to siphon into a cold water faucet. Each faucet is connected to either the hot or cold water supply lines, which are separate in a plumbing system.
Unless there is a recirculating pump the hot water has to come from the hot water heater. Depending on how far away it is from the faucet, it can take 15 to 30 seconds for the hot water to get there. Since there is nothing in the pipe to keep the water hot, it cools down between uses.
Cold water may be coming out of the hot water faucet due to a malfunction in the water heater, such as a broken heating element or a faulty thermostat. This can cause the water in the tank to not be heated properly, resulting in cold water coming out of the hot water faucet.
The left side of the faucet is typically associated with hot water, while the right side is associated with cold water.
The hot side of a faucet is connected to the hot water supply, which is heated, while the cold side is connected to the cold water supply. The hot side releases water at a higher temperature, while the cold side releases water at a lower temperature.
I'm no plumber, but I would imagine that (if the hot faucet is giving you cold water) that the hot and cold pipes leading into the bathroom have been somehow switched.
If water is only drawn from the cold faucet, then no, the water heater is not involved. However, if water is drawn from the hot faucet- even for a few seconds- hot water IS withdrawn from the heater, and fresh cold water drawn in to be heated- even if the hot water did not make it all the way through the pipe to the faucet- and the water heater will work to heat that fresh cold water.
To adjust the temperature of the water coming out of the faucet to a comfortable mix of hot and cold, you can turn the hot and cold water handles until you reach the desired temperature. Start by turning on the cold water, then gradually add hot water until you achieve the desired warmth.
The seals in the faucet most likely need replacing.
true, the water is going to get hot either if you use cold or hot water You did not answer my question of if it was "true" or a "myth" that the water had to be from the cold water faucet. From what you did respond to it sounds as if the question I generated means it is a myth that the water "has" to be from the cold water facuet.
Kitchen faucet? If so, the sprayer attaches to the underside of the faucet in the middle.