Well, usually in a hand-watered system, you'd be mixing your nutes right before use. But if you're confident that your nutrient system and water will stay stable from the time of mixing to the time of watering, you're fine.
stinkyattic Reviewed by stinkyattic on . Adding WaterNutes To Half Empty Resi = Bad? I water by hand and sometimes add water when I run low, and then put more nutes in accordingly because it makes things alot more convenient. I was told at the Hydro store that you are supposed to fill resi to desired amount, add nutrients, and then not add more water (besides the 4-5 gallon top off from the d\h) otherwise it kills some of the beneficial things for plants. Is this true? Do those of you who hand water use all the water completely, then re-fill it as needed? Is it really a Rating: 5