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checked soil ph today and it's 7.5, was wondering if i could use small amounts of aluminum sulphate to bring the ph down. i have about 30 gallons of rainwater that i collected last night with a ph of 6.3 that i'll be using for watering. anyone have any advice here.
-------------------- it's written right here. it's absolutely clear. the ganja herb is the healing of the nation.
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