Isherwood feb 6 18 at 16 48 my tankless isolation flush valves are closed by an aprox 90 deg ccw turn as seen from the handle side.
Water heater shut off valve stuck.
Drip penetrating oil down the shaft of the valve and allow it to soak in.
I took the whole water valve assembly apart and removed a large amount of well water scale.
Method 1 first make sure that you shut off the water that supplies the valve you re going to be working on.
Have you ever tried to turn off the water to a sink or a running toilet only to find that the valve is stuck in place.
Look closely at the swing stop and make sure you re pushing the right way.
Turn off the water supplying the valve you re working on.
This is usually caused by the rubber seat inside the valve drying out or.
It s a good idea to shut off the water supply before you try to bully a valve into submission.
If you want to go out and hear the heater making a hissing sound turn off the gas line valve.
Start by turning off the main water shut off valve to the house.
Otherwise you ll find yourself dealing with a gusher if the valve cracks or the pipe breaks.
Then spray down the stuck valve with penetrating oil.
Just go and shut off the valve located on the gas line close to the heater.
Try tightening the fittings with a pair of pliers and see if that stops the leak.
This may require you to turn off the entire home s supply.
If you can find any valve trace the gas line until you find a handle that serves as the switch.
The pilot lights and then the heater kicks on and stays on without opening any faucets.
Here is a video showing you how to handle a situation in which the water shut off valve or angle stop does not want to close or shut off.
The traditional grease and wrench approach to opening a stuck shut off valve is basically a matter of trial and error.
If there s buildup visible on the water valve pour a little white vinegar on the valve and scrub the buildup away with.
I soaked the whole thing in clr to remove all of the scale and reassembled it without replacing any parts.
When you shut off the water whether to a fixture or the main supply on the house the water will often find another way out if the seal isn t very good.
Grab a little penetrating oil such as liquid.
Turn the lever until it is perpendicular to the gas line.
This tip if followe.
It does the same thing.