What pump are you using for your ebb and flow system? I have added quick connect fittings to the sump pumps I use in the res's for feeding and just connect a hose for emptying them.
I always use my discarded res solution on yard plants...works very well
I read somewhere NOT to use rainwater but not sure why not
The quick connect idea would work, but I don't really like messing with the submersible pump once it's in place. Those little suction cup things don't hold it in place well so I just leave it alone. I need the extra pump for moving other water around anyways, but thanks for the idea..
Would you use discarded nute solution on edible veggies or just plants and bushes? I'm planning to have an outdoor veggie garden this year too and my soil mix usually works well, so I don't want to over fertilize.
I have only heard good things about rainwater so far - it's naturally filtered, low in mineral ppm and FREE! I'm open to hear any cons?