[modeleng] Re: On Going Story of Clacks!

I believe that the seat for Nitrile and Viton balls should be angled at 
45 degrees and not flat i.e. the ball seats in a 'cone' The ball for 
injector clacks are usually given a bit more lift than those for a 
mechanical pump.

John

The Sheppard Residence wrote:
> I'm finding out lots about Nitrile and Viton balls, but still don't have 
> working clacks.  They either seal totally (and won't let the injector 
> water through) or fail to seal!
>
> More details later, in the mean time -
>
> What is the recommended minimum ball lift on a clack.
>
> Cheers
>
> Peter
>
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