Cola Candy
Member
When you empty out the reservoir and refill with fresh water and nutrients, don't the roots dry out? How do you avoid this happening? I'm planning a grow using a GT424 system.
3 days prior to the tank change fill a 20 litre bucket with fresh made up nutrients
when i used to do a tank change in a 424 ,every 2 weeks ,the tank would be down to approx 5 litres ,b4 emptying the tank i would send 10 litres of pure water over the roots ,an inbeetween flush that helped stop any nasties forming ..to make emptying easier ,cut 2 pieces of 4x2 timber and raise the tank ,,when u empty remove front piece of timber ,,gives a nice slope to empty
get your self an airpump and some air hose and line the bottom of the tank ,,the more oxygen to the roots the better View Image
i found canna aqua the best nutrient for nft or ionic ,,,use with liquid silicon and liquid oxygen and you will get awesome results
Thanks for your input. Would your trick (laying the tank on top of 4x2 timber) work if you're doing a SCROG? When you SCROG your foliage is not so easy to move up and down so I wonder whether it would work or not.