plant in late bloom in trouble

hello - my plant is having issues that are destroying the major fans leaves and now moving on to the smaller fan leaves, but I am not going to try to diagnose, or fix it, just keep it going for hopefully the next two weeks so I can harvest. I am planning to go all water tonight.. in hopes of flushing it.... but I am wondering what it the real downside of what has happened to it - lower than possible yield? potency? dminished possibilities for regen and clone? or all the above? or nothing at all? ..more importantly, will the quality of the final product be diminished? if yield is the only thing that is affected I am fine with that and will learn from this experience. But I just wanna be sure that I am not gonna like have nugs that are compromised any other way, like saturated with locked up ferts or something - which can't be good for a person I imagine...

Thanks!

If you'll notice by reading others grow diaries that yellowing is common late in flower as nutes are being absorbed from the fans to produce the flowers by this time.Showgirl

thanks for the reply - I realized now that I should have put more details.. I have seen the late-stage yellowing, but this is definitely not that - it's a nutrient problem of some sort, the leaves are browning, curling and crumbly, which I think might have been due to ph being at around 5.2-5.3 the whole time, I think I needed it to be higher.. my next go round I will stay at around 5.8... but nonetheless it seems too late to worry bout trying to resolve it, just stay the course - I am just wondering if hydro nute problems can make it unhealthy to ingest and if so, should I do anything beyond flush it with straight water?