Low water damage,2nd day of pre flower

Had to go out of town for 4 days very close to pre flower. Filled 5 gal buckets , but ran 1 day short , got back had wilt and the plants had started to move nutrients from lower leaves.filled em back up with straight 5.5 ph water to balance out the condensed nutrients left .showing about day two of preflower. Next day did a full reboot and fed . How bad do you guys think this will hurt my final yield?
 
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