usually to save water
You need to replace the valve that redirects water from the tub's faucet to the shower head .
The faucet itself does not use any water. The rate at which the water leaves the faucet is dependent on the make of the faucet.
Proably the faucet has a worn out washer, replacing the washer should fix the problem.
Its a loss in water pressure to the shower.
By opening the walls
The shower gurgles because the water is going down the pipes.
It's the part of a tub control that makes the water go to either the faucet or the shower.
Clean or change the diverter faucet
1- plugged shower head 2- defective diverter
A tub faucet acts as a shower and can be used to bath in the bath tub. It is a pressure valve which makes the flow of water through it constant and gives a nice shower.
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Remove the shower head and clean out anything that might be blocking it, such as hair or debris. Replace the shower head and turn on the water; the water should be running.
The faucet is clogged
You replace the washer in the diverter so it won't let water out the faucet end when closed.
Yes, it can also cross through a two handled faucet. Both the hot and cold sides of the faucet must be on and the flow of water must be stopped or greatly reduced on the outlet side of the faucet. This can occur when a hose with a spray nozzle is attached to a laundry tub faucet with the faucet on and the spray nozzle off, or when a shower faucet is on but the shower spray head is off. When another cold water outlet in the system is turned on then the pressure on the cold side of the laundry tub or shower faucet in question could be lowered below the pressure on the hot side and hot water can flow into the cold water side. There are faucets which have integral check valves which prevent this from occurring. WWW.WOODBRIDGEPLUMBING.COM
To remove old shower pipes to install a new shower faucet, turn the main water off first. Then either cut the pipes at the joints or unscrew the washers holding the pipes together.
Its not changing from faucet to spray itself that burns, but the temperature of the water and where your body part is in relation to the water.
Diverter not functioning and depending on which type you have would determine the type of repair or replacement
D you mean tub spout and shower head???? If this is the question then your diverter is defective
You should purge all your water pipes of built in sediment. Don't forget, you are drinking the water too!
A clogged aerator on the end of the faucet would cause the water flow to decrease in that faucet.
Do you have hot water at other fixtures in the house? If not you have a water heater problem. If yes the Shower valve needs to be rebuilt if it is a bressure balanced faucet the concentration should be on the pressure balancing spool area of the faucet.
Employ a plumber.