Strange white crystals coming out of MPV

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Strange white crystals coming out of MPV

Postby Eddles » Mon 28 Oct, 2019 17:37

Hi all,

I've just spotted that there's strange white crystals coming out of the MPV from the backwash connection of the sand filter - looks a bit like salt? What's this? How do I fix this?

Many thanks in advance for advice.




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Re: Strange white crystals coming out of MPV

Postby Denniswiseman » Tue 29 Oct, 2019 07:01

I suspect it is salt (taste it)
Do you use liquid chlorine (plain bleach, sodium hypochlorite) to chlorinate as this adds more salt to the system
When you have a leak the water evaporates and leaves the salt residue behind
Not harmfull just reair the leak

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