If it’s quite a standard one, I think the electrics will be on the left, with the cable

coming out of the bottom of the electrics box. If that is the case then I think the flow will be from the bottom inlet to the top outlet.
If your pump looks upside down then the electrics box will be on the right with the cable coming out of the top. In that case the input will be at the top and the output at the bottom.
Now obvs I am completely unqualified to give any advise on this but I fitted my cheap replacement one no problem.
You shouldn’t need any ptfe tape, just make sure the threads are clean and inline.

Posted By: Augustus Pablo on March 25th 2020 at 21:31:58

Message Thread

Grundfos Pump (General Chat) - jackamo, Mar 25, 20:15:31
- THink you might get hammering if its the wrong way round. (n/m) (General Chat) - promethian1, Mar 25, 20:30:21
  - Can't beat a bit of water hammer can you. (n/m) (General Chat) - Men without hats, Mar 25, 20:31:05
    - Wawhammah (n/m) (General Chat) - Augustus Pablo, Mar 25, 21:13:23
- Depends on the flow rather than the way it's fitted. (General Chat) - Men without hats, Mar 25, 20:30:21
  - Yeah they should have a little arrow embossed on it. I fitted one last year (General Chat) - Augustus Pablo, Mar 25, 21:15:56
    - Where are the arrows struggling to see? Pump suddenly making humming noise and after 2 (General Chat) - jackamo, Mar 25, 21:19:36
      - They’re often a tiny embossed/embellished arrow on the side (n/m) (General Chat) - Augustus Pablo, Mar 25, 21:22:22
        
        If it’s quite a standard one, I think the electrics will be on the left, with the cable (General Chat) - Augustus Pablo, Mar 25, 21:31:58
        
        I will have to check tomorrow and play around with it...humming (General Chat) - jackamo, Mar 25, 21:41:10

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