First attempt at Hydroponics

7/31 Checked ppm and pH. She's still getting taller and the flowers are getting fatter, Still waiting on buds to start. She's doing well, I got lazy for 1 day. I checked ppm and pH, figure there was enough water for 1 more night. I was wrong, came back from work and the bucket was almost empty with a ppm of 1450 and a pH of 5.8 I quickly topped her off with fresh water, ppm fell to 780. Bumped it up with a dash of grow and bloom to 900ppm and a pH of 6.2 She quickly perked up, haven't seen any nutrient burn, she's still growing everyday. 8/1 Checked ppm and pH 8/2 Checked ppm and pH 8/3 Checked ppm and pH 8/4 Checked ppm and pH 8/5 Checked ppm and pH 8/6 Checked ppm and pH ( Note : I am topping my DWC off daily, if ppm goes below 900 I add a small amount of my nutrients and check it till its around 900 ppm again, I add sink water that sits out for 24 hours, Its ppm is 125 starting. I have not done a reservoir change at all. If ppm climbs to high I just add fresh water till it falls) This isn't recommended, I am doing this as a test run. I don't mind experiments on my plants, I just enjoy the grow and what I get in the end is only a bonus.