Airlock in Rena XP4?

Discussion in 'Filters, Filtration and Pumps' started by Tom, 10 Nov 2008.

  1. I think I must have an airlock in my XP4, as it is being very loud. Trouble is, if it is an airlock, I can't seem to get it out. I've tried shaking and tipping to filter to try and force it out the pipes, and pouring water into it using a funnel so it runs straight through the filter.

    It's really annoying me now as it's in my bedroom and it's too loud at night. Any tips on quietening it down a bit/clearing the air from it?


  2. Mark Evans

    Mark Evans Expert

    newark notts.
    i get the same probs with my xp 2. i fill mine through the filter inlet hole without taking klid off. do it outside and shake off the excess. connect leave for 2/3 minutes(acording to instruction) switch on. with lilly pipes you cant prime the damn thing. i think this is where the problem lies.
  3. Thanks Mark.

    I am using the Fluval pipes (hate the things!) as I only got the actual cannister bit of the Rena, so I can't prime it properly either.
  4. bugs

    bugs Member

    Whenever my Eheim gets air trapped I switch it off, connect a syphon tube to the outlet in the tank, and suck it out. You waste a bit of water but it always works.

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