S
Stoner Smurf
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Just as the title says, how often do you swap out your res? I heard someone on here say once at the beginning of flower, once in the middle of flower, and flush at the end. Three times from beginning to end. That's hard for me to wrap my mind around, since I change out my res on my DWC system, weekly or bi-weekly. Is it common practice to not often change out your res on your UC system?