Flushing last 2 weeks

So when I hear people saying flush the last two weeks with pure water, does that mean Ph water?

Yeppers. You should read the threads disputing this common practice. Interesting stuff..

i personally dont flush be4 harvesting... i have heard from heaps of people that once they compared the difference it was minimal and your plants would be better off with nutes so they can make the nugs thick

Unless you seriously over nute your plants, you don't need to flush them before harvest.