What to expect after flush??

I just flushed my plants with sledge hammer then run about two gallons of water threw 5 gal pots to raise soil ph ( not final flush) plus i have expected nute lock ... what should the runn off ph be? and how long will it take for them to bounce back they are 4 weeks into flower

Two gallons in 5 gallon pots its not even close to a flush

Since i used sledge hammer i figured that would be sufficient and it was probably 3+ which i realize is not a true flush i just want to raised soil ph and didn't want to over do anything..... my run off was only 6.0 when i stopped but it was 5.2- 5.4 i figured this was good and when she dried a little i could just adjust ph of my fert a little higher and add a little lime if i must .... just wanted to know if i should have kept going until i got a higher ph or justgive it a little time

its about.. 3 gallons per gallon for a fair flush. i have 4 gallon pots and use 12 gals of tap water to flush

i just flushed mine yesterday do to over fertilization... shoulda done it earlier but thought they were gonna bounce back. guess not