Just do it the easiest way you can. Might be changing buckets. I had 10 gallon tubs that I could use the water pump from the dripsystem to pump out water but it's slow. I ended up going to a boat shop and getting a hand bilge pump. I put a hole just big enough in the top and I can pump it out in a minute. Working on a power pump to do it faster. Changing water is the heaviest part of it all. Good luck and let us know if you find a easy way.
LOC NAR on probation Reviewed by LOC NAR on probation on . how to change water in DWC Since I am new at this whole water thing.... How do I change my DWC water "resevoir"? Do I just take the lid off, hold up the plants and roots, dump and refill? Do I use a second tub and do a switch placing the old lid on the new tub? What do you do and how do you change your resevoir and how often? Rating: 5