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.
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.
It's probably not the faucet. It could be that there's an obstruction in the hot water side of the fixture, but it's more likely that the hot water isn't getting to the fixture in the first place. The easiest thing to check is that the hot water valve at the wall under the sink is on.
The seals in the faucet most likely need replacing.
A faucet.
mostly because of rust deposits
First make sure that the hot and cold supply lines (the plumbing) aren't backwards (hot should be on the left as you are facing the faucet) or that someone accidentally ran two hot lines. For the problem to be in the faucet itself you would have to have a single handle faucet. If this is the case the control valve is broken and should be replaced. Three handle Left= Hot Water Flow. Right= Cold Water Flow Center= Controls whether the water comes out the shower head or tub faucet. Two handle Left= Hot Water Flow Right= Cold Water Flow (Diverter Valve is elsewhere if it's a tub/shower) Single handle One handle controls both water pressure and temperature
Tap water comes from the water faucet. It gets to the water faucet from the water treatment plant through the water storage takes and lines.
You probably have a blocked or frozen pipe into the H/W tank.
This could be due to a problem with the cold water valve, a blockage in the cold water supply line, or an issue with the faucet itself. It is best to check these areas to identify and resolve the specific cause of the issue.
Water continues to come out of the faucet when using the shower because the plumbing system in a house is designed to supply water to multiple outlets simultaneously. This means that water can flow to both the faucet and the shower at the same time without any interruption.
what does water come out when you drink it
Faucet needs repaired.