Shower only stays lukewarm

SOURCE: SHOWER HOT WATER SCALDING

hi as you are probably aware ,when the toilet is flushed the water pressure to the shower is reduced so you get hot/scalding water unfortunatly there is NO easy solution you could put a needle valve in the supply to the toilet and with trial and error by turning the valve down reach a compromise between the time it takes to fill the flushing tank and the shower temp the only real solution is to feed the toilet and shower off independent supplies but in most houses this is impractical if not impossible silk090

SOURCE: just installed shower and faucet in bath tub when

Verify the height from the shower valve to the Shower head, the instructions specify the correct distance if it is too short the pressure could be getting up to the shower head.

Perhaps the water pressure it too high at the valve not allowing all the water down the faucet outlet, there are set screws on the sides of the shower valve to adjust the water allowed in the mixing chamber.

Something is restricting the water flow to the faucet, creating enough pressure to send some of the ater supply up to the shower.

I hope some of these ideas help

SOURCE: kohler bath/shower diverter stem stuck on shower

Probably has water deposit minerals build up on it. Push and or pull with pliers until freely moves,soak in Lime away solvent ,toothbrush on.

SOURCE: can't pull up the knob that diverts water from bath to shower

you can try taking it apart, starting with the handle, then the cover, im sure it can be fixed.

SOURCE: No hot water pressure on kohler bath / shower faucet

Try draining the system and apply air pressure (min 30psi) to each faucet. Open other hot water faucets to allow pressure to vent. Next try draining and cleaning the hot water tank.