I HAVE NO COLD WATER FILLING THE SUPPLY LINE TO THE WATER HEATER. THE REST OF THE HOUSE IS RECEIVING WATER NO PROBLEM. BUT I DON'T KNOW IF I HAVE A CALCIUM BLOCKAGE OR IF THERES A SHUT OFF VALVE HIDDEN ON THE LINE, I COULD NOT FIND ONE. THE HOME WAS BUILT IN 2004.

PEX IS IN THE ATTIC SUPPLYING COLD AND HOT IN THE ATTIC. THE ORIGINAL PROBLEM WAS THAT WE LOST HOT WATER AND SHUT OFF THE BALL VALVE TO REPLACE THE TANK.

CURRENTLY BY PASSING THE TANK FOR A CLOSED LOOP SYSTEM, BUT NO WATER SUPPLY TO THE TANK AT THE BALL VALVE.



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easiest test is to put a washing machine hose on the drain of the teater. hook a regular hose to that and turn the water on. see if you get water at the hot water faucets

I am not following, you are currently bypassing the tank by running the cold feed to the hot side directly, so is there water coming out of the hot side of faucets when you did that? If so water is being fed into the hot side. If nothing is coming out of the hot side of the faucet, and the tank is bypassed, it has nothing to do with the tank.

Or do what Packy suggested, hook back up the cold and hot to the tank, and open the cold side valve, if nothing is feeding the hot faucets, hook a garden hose one side to the WH drain valve, the other side to a hose bibb or the washing machine valve cold side, and open the drain valve, that will let water into the tank and pressurize the hot side of the faucets, if that works the path from tank to the hot side is fine.

Is the cold feed valve to the WH a gate valve or a ball valve? Any chance it's stuck in closed position?

Is the system hard piped to the WH or is it a 3/4" male threaded connection? If you have a 3/4"FIP X MHT adapter can put it on the cold side and a hose bibb with the other running into a bucket or outside turn it on and off do you get water shooting out or not?

NO
by pass the cold feed by simply closing the cold fill valve.
run a hose to the tank drain on the bottom.
presssurise the tank from there.
now open a hot faucet or two

But packy I thought he said he has already bypassed the tank by connecting the cold to the hot side so the tank is already out of the loop.

I have never heard of calcium blocking a water line like that, unless you have super hard water and you did a lot of vibrations to the pipes during a repair. But I don't know your region.

If you shut the water off to replace the tank, then either there's a valve that is still off, or whoever replaced the tank did it wrong, and you need to call him back.

Old gate valves sometimes won't open back up when they fail. Usually it's the other way around, but it's not impossible.

If you did it yourself, and the new tank is installed, then check all your connections, or call in a friend you trust who has good problem-solving skills, and trace all the water lines. Use labels on the actual pipes if needed. Usually this shows up what the problem might be.

Also remember that a brand new tank can take a while to fill up and another while longer to get hot.

If you can't figure it out still, send pictures here and it will help a lot.



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