Quote Originally Posted by tasermebro
What is the best way to perform a nute/rez change???
A nutrient change or a flush? To change, you just empty all of the old nutrient solution and make up a new, fresh solution to replace it.

Flushing is to remove nutrients in the growing medium. You can flush with plain, pH'ed water, or you can use a flushing solution. You can/should flush your system periodically while growing to keep your media from becoming concentrated with fertilizer salts. You should also flush for about the last week of flowering to remove all nutrients from the media. This allows the plant to begin breaking itself down for nutrients before it is harvested, aiding in curing the produce for better smoke and taste.