Is there an instruction on how to replace the pH sensor?
((# GroboFixMe )):
(Instructions to dismantling the Grobo under ‘Hide’): (Other than that Follow the PHsensor cord):
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Thanks, Barbara! 
I don’t need to replace it just now but by the time my third grow starts, it will be due for it’s yearly replacement
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Thank you!
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@Stephen May I suggest that this and other procedure’s be located in a sticky somewhere on this forum?
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Hey all!
I’ve acquired a spare pH sensor, where would I be able to purchase an additional EC sensor?
Cheers
Eric
Amazon and EBay
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