Re: [APD] Eheim prime problem

["Rachel Sandage" <rachelsor at hotmail_com>]

FWIW, I took the little ball completely out of my 2026 and the priming thing works fine...
  ----- Original Message ----- 
  From: S. Hieber<mailto:shieber at yahoo_com> 
  To: aquatic plants digest<mailto:aquatic-plants at actwin_com> 
  Sent: Monday, July 19, 2004 7:09 AM
  Subject: Re: [APD] Eheim prime problem


  I find the priming mechanism onthe Eccos a bit less fussy
  than that on the 2x26, 2x28 series. But generally, it works
  quite well if maintained. Here are some things to check.

  --Start with a filter with no water in it. Sometimes the
  Ehiems seem to start better when there is no water in it
  before you start the siphon going and don't turn onthe pump
  until the filter fills all the way. Alternatively, before
  reconnecting the outlet hose to the filter, empty the
  outlet hose of water so that no air gets trapped in the
  line. Note, however, that neither of these these things
  should be an issue if the ball&cage and primer are
  functioning normally.

  --Make sure the ball&cage assembly is clean and clear of
  debris. With the the filter out of service and the tubes
  disconnected, you can lift out the red ball cage (really
  just a plastic stop that keeps the ball from being pushed
  to far up the outlet) and then tip the  filter to pour the
  ball out of the hole. If the ball is worn, it won't work as
  a valve and the primer won't be effective. This ball acts
  as a oneway valve so that, when the primer comes back up,
  it sucks water into the siphon but not back through the
  outlet. Without it, the primer just pushes water back and
  forth in both in and out tubes at the same time without
  getting a siphon started.

  --Make sure the primer's seal is lightly lubed with
  petroleum jelly. The primer rides up and down inside the
  pumphead housing, with a rubber seal around the primer's
  circumfrence. If this seal is not lubed, the primer becomes
  sticky and ineffective and you can get leaks (the water
  will seep out through the handle cavities where the cord
  exits the filter. The primer should slide down and back up
  nice and easy without struggle. You'll need a small stick
  or a Q-tip with the cotton removed to fit down inbetween
  the primer and the pumphead housing. With a  little jelly
  at a time, gently poke some down onto the seal, work you
  way around the seal with more dabs. Work the primer up and
  down a few times. The primer should spring back up readily
  and freely. Even when the filter is installed and you're
  trying to draw a siphon, the primer should come back up
  easily and readily.

  Hope that helps,
  Scott H.

  --- "Hopkins, Samuel" <Samuel_Hopkins at marconi.com<mailto:Samuel_Hopkins at marconi.com>> wrote:
  > Hi Everyone,
  > 
  >      I have an Eheim 2028 and when I press down on the
  > priming plunger it
  > goes down but when it comes up nothing happens, the unit
  > doesn't prime. To
  > get it flowing after I change the filter I have to hold
  > down the priming
  > plunger and suck on the outflow tube. Once it's primed
  > it's fine. Any ideas?
  > 
  > Thanks,
  > 
  > Sam
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