High PH During Flush.. please help

[GrowWithTheFlow]

Hey whats up everyone,

So i started my two week flush this week. Since doing so I have seen my runoff ph jump. Im not sure if this is normal, or if I should be doing something different.

Plant is at day 63 and looking to be chopped around day 73. Runoff ph has been 6.7/6.8.. plain RO water no neuts added.

 

[chemistry]

I wouldn't worry, your flushing out the nuits so it matters not what your PH is.