change the solution
 

Ron! Before I found your website, I purchase two WaterFarms and the three "Flora" nutrients. They recommended to change the solution and rinse tanks every 7 to 10 days. This uses a lot of expensive nutrients. Does you system require the same attention?
Thanks, JohnJ

Hello JohnJ
To tell you the truth I only change my nutrient solution if my plants show signs of trouble like yellowing or burnt tips. When I here the pump sucking and see my plants wilting then I know it's time to fill up the tank. The small gardens like the 11 plant needs more maintenance so I would change it more often especially if the water gets funky.
Ron