hot water tank

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  • This topic has 7 replies, 5 voices, and was last updated 23 years ago by Avatar photofourth year.
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    • 27 Mar 2001 at 12:09 pm #274818
      Avatar photoMasterPlumbers
      Keymaster

        Does it hurt the hot water tank if the hot water is coming out of the marking of the cold and vice versa? The cold water feed is going in where the hot is marked?
        Thanks

      • 27 Mar 2001 at 7:33 pm #290537
        Avatar photobootjack
        Participant

          quote:

          Originally posted by [email protected]:
          Does it hurt the hot water tank if the hot water is coming out of the marking of the cold and vice versa? The cold water feed is going in where the hot is marked?
          Thanks

          Every water heater comes with a dip tube slipped inside of the cold water inlet to keep the cold water entering the tank down at the bottom of the tank. This way the colder water is heated and rises to the top of the tank. The way you have your tank hooked up, your colder water is mixing with with your aready hot water and you probably not going to get temperatures you want from you heater.

        • 29 Mar 2001 at 12:50 am #290538
          Avatar photoracefanone
          Participant

            You can run the cold water supply in the hot side if the dip tube has been changed from the orginal cold side to the hot side .If you do this you will have to use a close nipple installed in the hot side first and then insert the dip tube in the nipple .If you dont use the nipple the dip tube will fall into the heater

          • 29 Mar 2001 at 1:09 am #290539
            Avatar photoracefanone
            Participant

              The cold water supply can be piped into the hot side providing the dip tube is changed to the hot side.In order to do this a close nipple will have to be installed in the hot side first to prevent the tube from falling into the tank

            • 29 Mar 2001 at 7:52 am #290540
              Avatar photoThisOldHouse1
              Participant

                Short of taking the connection off or, if it’s an electric water heater, taking a heating element out, is there a way to tell which side the dip tube is on? Which is more work?
                [Edited by ThisOldHouse on 29 March 2001]

              • 29 Mar 2001 at 7:56 am #290541
                Avatar photoThisOldHouse1
                Participant

                  Short of taking the connection off or, if it’s an electric water heater, taking a heating element out, is there a way to tell which side the dip tube is on? Which is more work?

                • 30 Mar 2001 at 2:25 am #290542
                  Avatar photoracefanone
                  Participant

                    If I had a choice,I would take the union loose on the tank.

                  • 30 Mar 2001 at 2:36 pm #290543
                    Avatar photofourth year
                    Participant

                      Open the relief valve and see how long it takes before you get cold water. If it is almost instantaneous or at least a very short time then the dip tube is on the wrong side.

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