Hey all, so I had a look at my CO2 set-up and I gave the bottle a shake. A small amount of sugar water, very small, started to travel up the line to the top of the tent.

A few drops came out the ends of the lines. I was quite amazed at the speed at which it travelled... It was 2cm long in a 5mm tube and it reached the top in about 2 seconds. I'm 100% sure it is the CO2 that pushed it through the tubes as it continued to move after I put the milk carton down. If I squeezed it too much the liquid would have returned to the carton.

Obviously it was the CO2 that was being produced in the bottle that propelled it. I just can believe that so much was moving through the tubes. I thought it would take a minute to reach the top.

Anyway, I'm glad to know it is actually creating CO2 and at quite an astonishing rate ! I'm sure this will make a difference. Each end of the 5mm tubing is stuck against each of the main colas of the 4 plants, for extra benefit

Take Care all

S.L.