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Understanding Watering Rhythm & Runoff

Same nutrient solution, yet the EC in your substrate keeps climbing? This practical course explains why salts accumulate in the pot, what "20% runoff" actually means, and why your substrate’s drying time is a better guide than the calendar.

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1

Why Your Pot Slowly Builds Up Salt

Same solution, rising EC – the invisible residue.
2

Runoff – The Overflow Valve

20% rule of thumb: flush the salt before it stacks up.
3

Watering by Drying Time, Not by Calendar

Your substrate knows the rhythm – the calendar doesn’t.
4

The Reset – Flushing It Right

You’ve got the diagnosis – now the fix: flush it properly, without overdoing it.