I`m Egyptian and interesting in gardening , because hydroponic systems are not available here in Egypt I designed and did a hydroponic system in which I used 20 L (car oil bottle) as a container for the nutrient solution and 2 L (soda water) as a container for the plants , I made 2 groups of the 20L bottles (1) the lower group , (2) the upper group, the bottles of each group are connected to each other by PVC tubes.
The lower group are connected to the upper group by a pump (with valve) which pumps the fluid and air to the upper group (3+4) it needs 13 min. to fill 32 (20L) bottles of the upper group the fluid returns back again by gravitation to the lower group through a tap in this part (5) the fluid is mixed with air , fertilizers and new water and this journey need 167 min. I e the pump works under timer for only 13 min. every 3 hrs .
Please I need your comment.
Thanks to all
Upper group in the right, left :lower group