Cucumber 2 weeks after transplanting into the Big Mama single drip system.
Change the reservoir with fresh solution at least once a week if at all possible. Just recycle the old solution by dumping on some plants outside. Drain the solution carefully so you don’t damage your plant or the roots growing in the bucket (you may want to consider adding a spigot or drainage hole to the bottom of the bucket for ease).
If you maintain your system in a very sterile and controlled environment, you may be able to just add plant food and water as it gets depleted in the bucket, without ever changing the reservoir. But always maintain a pH around 6.0 and adjust your EC depending on the maturity of the plant. If you are growing a flowering plant, you will need to switch to a Bloom plant food at flowering. (since it contains more phosphorous and less nitrogen)
Overall keep an eye on your plant for insects and diseases. Always remove dying leaves and discard. With these type of passive systems it is VERY important to keep the growing area clean and disease free.
A smaller version of this system can be made for our 6" Hugo block; but remember, the bigger the block, the bigger the plant and the more stable it will be. You can also adjust this system for loose GRODAN products such as the Grow-Cubes™. Simply create a frame where the pot containing the Grow-Cubes sits on top of the bucket (the reservoir). All the rest of the parts remain the same.
With a little work, you will soon have beautiful plants growing in your home-made drip system!