Help flush not working dont know what to do?

Hi,

about a week ago i noticed the pH in my soilless mix was off and hence started a flush. So far i've put a 120 gal of 60.-6.5 RO water through my 4, 5 gal buckets. my Run off started in the high 8's, now it's down at 8-8.1 and just stopped. i cant get it to drop any lower. Whats going on? what can i do? thanks

current grow-------->https://www.rollitup.org/blogs/blog25517-grow-2-kushmans-strawberry-cough.html

quit measuring your run-off, it's run-off and won't tell you nothing. did you notice a problem with the plant that made you do a flush? your using r/o water, do you replace the lost cal/mag?
and quit using superjive, it does more harm than good.

thanks chuck. yea i noticed the beginnings of yellowing btwn the viens on all my plants checked it out and narrowed it down to pH. then did the run off thing. why dont check the run off, you use a soil meter? why no superthrive too? i heard its only bad in the first two weeks of flowering, other than that its just vit B

oh yea, and i think your right, my readings were all off cuz the RO water's ppm so low it makes my pens go all weird. read about adding cal mag, dont have any so now i'm cutting my RO water with tap water till my ppm hit around 140. ph readings have stabalized, gonna rebalance my reservoir, flush 1 more time and hopefully not have drowned my plants. i bet theyre starving by now tho. Also chuck, please explain what you mean by run off wont tell you nothing, never heard that before, i'm curious

superjive is expensive and does nothing. are you supplementing cal/mag with that r/o water? checking the water that ran out of your pot won't give you any useful info.

Ph your water lower. its its still coming out at 8.0 i would drop down to say 5.0 for the flush and see if that gets you down to around 6.3 or so good luck to ya

thanks swiss, yea i'm pickin up some cal mag today to make readings easier and starting another 40gal flush. hopefully this is my last flush,if i keep at this rate im not sure if its doing more harm than good.

I would do straight Ph'd R/O water man !! just tell the ph is right then get right back at them with a low dose of nutes. what line are you using !?