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1-1/2" Copper Unions leak every 6 weeks

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  • 1-1/2" Copper Unions leak every 6 weeks

    After replacing a 100 gal. gas water heater with new 1-1/2" copper sweat fittings. They decide to leak at about 6weeks after install. I replaced both the hot and cold fittings, and 6 weeks later they are leaking again at the sealing point, not at the solder joint. Cold water is city pressure 60 psi., normal city temp,
    Hot side is set to 165 degrees. Any thoughts would be helpful. Thanks.

  • #2
    Re: 1-1/2" Copper Unions leak every 6 weeks

    Was it a sweat x sweat union or a dielectric union?

    I rarely have leak problems with sweat unions as long as no solder gets on the face of the flange.

    Dielectric unions sometimes need to be snugged up after a break-in period but only 1 time.

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    • #3
      Re: 1-1/2" Copper Unions leak every 6 weeks

      They are sweat x sweat fittings, they seem to hold for awhile then????

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      • #4
        Re: 1-1/2" Copper Unions leak every 6 weeks

        ensure contact surfaces are clean.
        wrap with a couple of turns of teflon tape/hemp or similar,add a smudge of BossWhite or similar jointing compound and reassemble.
        Should work,especially with Hemp.

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        • #5
          Re: 1-1/2" Copper Unions leak every 6 weeks

          Thank You for the replies,
          The fittings are the wrot kind, and I was just wondering about the quality of them. I did get them from a distribution company that sells items at a low price. Looks like I need to get some good quality fittings.
          Thanks.

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          • #6
            Re: 1-1/2" Copper Unions leak every 6 weeks

            All I am going to say is you "usually" only get what you pay for!

            Good luck and buy some better unions.

            Regards,

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            • #7
              Re: 1-1/2" Copper Unions leak every 6 weeks

              I use the Brass FIP x copper unions on anything larger then 3/4, they cost about 26.00 to 35.00 each ( 1" ), but they are heavy duty and I never have any problems, remember, put alittle dope on the flange, then screw them toghether, no problems
              sigpic

              Robert

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              • #8
                Re: 1-1/2" Copper Unions leak every 6 weeks

                What does 'wrot' stand for? I've always wondered this. Thanks....
                Proud To Be Union!!

                Comment


                • #9
                  Re: 1-1/2" Copper Unions leak every 6 weeks

                  I believe "Wrot" is a form of the word "Wrought" which I think defines the way something was made or the labor used to make something. Here is the definition of "Wrought" from www.dictionary.com.

                  work /wɜrk/Pronunciation Key - Show Spelled Pronunciation[wurk]Pronunciation Key - Show IPA Pronunciationnoun, adjective, verb, worked or (Archaic except for 35, 37, 40) wrought; working. –noun 1.exertion or effort directed to produce or accomplish something; labor; toil. 2.something on which exertion or labor is expended; a task or undertaking: The students finished their work in class. 3.productive or operative activity. 4.employment, as in some form of industry, esp. as a means of earning one's livelihood: to look for work. 5.one's place of employment: Don't phone him at work. 6.materials, things, etc., on which one is working or is to work. 7.the result of exertion, labor, or activity; a deed or performance. 8.a product of exertion, labor, or activity: musical works. 9.an engineering structure, as a building or bridge. 10.a building, wall, trench, or the like, constructed or made as a means of fortification. 11.works, a.(used with a singular or plural verb) a place or establishment for manufacturing (often used in combination): ironworks. b.the working parts of a machine: the works of a watch. c.Theology. righteous deeds. 12.Physics. force times the distance through which it acts; specifically, the transference of energy equal to the product of the component of a force that acts in the direction of the motion of the point of application of the force and the distance through which the point of application moves. 13.the works, Informal. a.everything; all related items or matters: a hamburger with the works. b.harsh or cruel treatment: to give someone the works. –adjective 14.of, for, or concerning work: work clothes. 15.working (def. 18). –verb (used without object) 16.to do work; labor. 17.to be employed, esp. as a means of earning one's livelihood: He hasn't worked for six weeks. 18.to be in operation, as a machine. 19.to act or operate effectively: The pump will not work. The plan works. 20.to attain a specified condition, as by repeated movement: The nails worked loose. 21.to have an effect or influence, as on a person or on the mind or feelings of a person. 22.to move in agitation, as the features under strong emotion. 23.to make way with effort or under stress: The ship works to windward. 24.Nautical. to give slightly at the joints, as a vessel under strain at sea. 25.Machinery. to move improperly, as from defective fitting of parts or from wear. 26.to undergo treatment by labor in a given way: This dough works slowly. 27.to ferment, as a liquid. –verb (used with object) 28.to use or manage (an apparatus, contrivance, etc.): She can work many business machines. 29.to bring about (any result) by or as by work or effort: to work a change. 30.to manipulate or treat by labor: to work butter. 31.to put into effective operation. 32.to operate (a mine, farm, etc.) for productive purposes: to work a coal mine. 33.to carry on operations in (a district or region). 34.to make, fashion, or execute by work. 35.to achieve or win by work or effort: to work one's passage. 36.to keep (a person, a horse, etc.) at work: She works her employees hard. 37.to influence or persuade, esp. insidiously: to work other people to one's will. 38.Informal. to exploit (someone or something) to one's advantage: See if you can work your uncle for a new car. He worked his charm in landing a new job. 39.to make or decorate by needlework or embroidery: She worked a needlepoint cushion. 40.to cause fermentation in. —Verb phrases 41.work in or into, a.to bring or put in; add, merge, or blend: The tailor worked in the patch skillfully. Work the cream into the hands until it is completely absorbed. b.to arrange a time or employment for: The dentist was very busy, but said she would be able to work me in late in the afternoon. They worked him into the new operation. 42.work off, a.to lose or dispose of, as by exercise or labor: We decided to work off the effects of a heavy supper by walking for an hour. b.to pay or fulfill by working: He worked off his debt by doing odd jobs. 43.work on or upon, to exercise influence on; persuade; affect: I'll work on her, and maybe she'll change her mind. 44.work out, a.to bring about by work, effort, or action. b.to solve, as a problem. c.to arrive at by or as by calculation. d.to pay (a debt) by working instead of paying money. e.to exhaust, as a mine. f.to issue in a result. g.to evolve; elaborate. h.to amount to (a total or specified figure); add up (to): The total works out to 176. i.to prove effective or successful: Their marriage just didn't work out. j.to practice, exercise, or train, esp. in order to become proficient in an athletic sport: The boxers are working out at the gym tonight. 45.work over, a.to study or examine thoroughly: For my term paper I worked over 30 volumes of Roman history. b.Informal. to beat unsparingly, esp. in order to obtain something or out of revenge: They threatened to work him over until he talked. 46.work through, to deal with successfully; come to terms with: to work through one's feelings of guilt. 47.work up, a.to move or stir the feelings; excite. b.to prepare; elaborate: Work up some plans. c.to increase in efficiency or skill: He worked up his typing speed to 70 words a minute. 48.work up to, rise to a higher position; advance: He worked up to the presidency. —Idioms 49.at work, a.working, as at one's job: He's at work on a new novel. b.in action or operation: to see the machines at work. 50.gum up the works, Slang. to spoil something, as through blundering or stupidity: The surprise party was all arranged, but her little brother gummed up the works and told her. 51.in the works, in preparation or being planned: A musical version of the book is in the works. 52.make short work of, to finish or dispose of quickly: We made short work of the chocolate layer cake. 53.out of work, unemployed; jobless: Many people in the area were out of work. 54.shoot the works, Slang. to spend all one's resources: Let's shoot the works and order the crêpes suzette.
                  [Origin: bef. 900; (n.) ME worke, OE worc, r. ME werk(e), OE weorc, c. OFris, OS werk, OHG werah, werc (G Werk), ON verk, Gk érgon; (v.) ME worken, deriv. of the n., r. ME wyrchen, OE wyrcean; c. G wirken, ON verkja, Goth waurkjan]

                  —Synonyms 1. Work, drudgery, labor, toil refer to exertion of body or mind in performing or accomplishing something. Work is the general word and may apply to exertion that is either easy or hard: fun work; heavy work. Drudgery suggests continuous, dreary, and dispiriting work, esp. of a menial or servile kind: the drudgery of household tasks. Labor particularly denotes hard manual work: labor on a farm, in a steel mill. Toil suggests wearying or exhausting labor: toil that breaks down the worker's health. 2. enterprise, project, job, responsibility. 3. industry, occupation, business. 4. job, trade, calling, vocation, profession. 7. product, achievement, feat. 16. toil, drudge. 28. operate, manipulate, handle. 29. accomplish, effect, produce, achieve. 34. finish, form, shape. 37. move.
                  —Antonyms 1. play, rest.

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                  • #10
                    Re: 1-1/2" Copper Unions leak every 6 weeks

                    brucestroy,

                    Not that I didn't enjoy your full page history and usage of the word "wrought", but:

                    The term is "wrot" which refers to the standard smooth shiney copper fittings as opposed to the rough "cast" fitting, which are typically used for high-eared elbows, unions, etc. Cast fittings are made in a mold, as opposed to the extruded wrot fittings. Cast copper fittings are often mistaken for brass.
                    the dog

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                    • #11
                      Re: 1-1/2" Copper Unions leak every 6 weeks

                      Originally posted by plumbdog10 View Post
                      brucestroy,

                      The term is "wrot" which refers to the standard smooth shiney copper fittings as opposed to the rough "cast" fitting, which are typically used for high-eared elbows, unions, etc. Cast fittings are made in a mold, as opposed to the extruded wrot fittings. Cast copper fittings are often mistaken for brass.
                      Thanks, plumdog10. I looked around online, but couldn't find anything with a definite interpretation of "Wrot." I never really thought about the word until Aaron brought it up. I'm glad you were able to keep me from misguiding Aaron and I appreciate your reply.

                      Comment


                      • #12
                        Re: 1-1/2" Copper Unions leak every 6 weeks

                        Thanks Big Dog for clearing that up. Your the man.

                        Bruce, thanks for your efforts to answer my question, I really do appreciate that.
                        Proud To Be Union!!

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                        • #13
                          Re: 1-1/2" Copper Unions leak every 6 weeks

                          try puting dope on the ground joint of the union dosent hurt...

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