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Magnetic plug v. Drain on a suction diffuser

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steamfitter
steamfitter Member Posts: 156
I was always intrigued by the 3/4" steel plug on the bottom of a suction diffuser. I believe I read somewhere that it is more tionally magnetic to capture very fine ferrous particles in the water inlet to a centrifugal pump.
There is the drain that poses an issue. The outlet on the bottom is a perfect location for a drain valve. So what do you do with the magnetic plug that comes with the suction diffuser if you use that outlet for a drain?
I often thought, why didn't the manufacturer place two outlets on the bottom of this unique device? One for the drain and the other the magnet.

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  • ScottSecor
    ScottSecor Member Posts: 864
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    We always left them in place if they were actually a magnet. However, I'm not sure all brands of suction diffusers come with a magnetic plug, been a long time since we installed end suction base mounted pumps.