Eheim: Best Way To Fix SLOW Leak?

Discussion in 'Anything DIY related' started by Norio DS, Feb 12, 2018.

  1. Norio DS

    Norio DS

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    I bought an Eheim second hand and, during testing, I didn't notice any leaks.

    This weekend, I reconnected everything (so I could connect the shut-off valves) and then there was a small leak from the outlet nipple. I added some thread tape there and it helped a lot but the leak is still there. Just VERY slow. (I can only feel some water there after an hour or two.)

    What's the best way forward? Add more thread tape? Just tighten it more? (I have very soft, weak hands. So it's genuinely possible that I didn't tighten it nicely after I got tired.)

    I DON'T wanna break the thing. I'm scared if I over tighten it, I'll break the fastening ring. Am I just being TOO careful?

    Thanks folks!

    IMG_6755.jpg
     
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  3. Ren

    Ren

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  4. morris

    morris

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    Do not use hemp on any plastic fittings.
    If the hemp gets wet it swells and can crack the plastic fittings, plumbers tape is made for plastic fittings and hemp for galvanised and conex fittings
     
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  5. Reedfish

    Reedfish Moderator

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    Not sure if this would be the same with the Eheim
    But my Aquamanta was leaking from one of the joins. There was a bit of build up around the seal ring. I cleaned the whole area thoroughly, replaced the ring. And the leak stopped
     
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  6. OP
    Norio DS

    Norio DS

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    Thanks peeps. On APSA I also got the advice to do a clean cut 20mm above the nipple and soak the hose in hot water before connecting. Which worked for me before on a hose in a different situation. (Adding this here in case someone else on TASA is having the same issue and looking for as many good ideas as possible.)
     
  7. OP
    Norio DS

    Norio DS

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    By the way, this is very helpful info. I'm always worried about breaking things by man-handling them. Although I'm a scrawny geek with delicate programmer/musician hands so I use the term "man" very loosely :tt2:
     
  8. OP
    Norio DS

    Norio DS

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    It's all clean already but I'll definitely keep that in mind. I can see how a small amount of dirt can prevent a seal and cause a leak. Thanks!
     
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  9. BBFish

    BBFish

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    Some tips for those using thread tape
    1. Do not tape the first two threads, it give the connector a chance to "grip properly" before reaching the tape.
    2. Always wind your tape in a clockwise direction otherwise the connector will rip the tape apart and not seal.
    3. Usually a minimum of 3 winds is sufficient.

    Hope this help
     
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  10. OP
    Norio DS

    Norio DS

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    Thanks! Great info.
     

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