reza92
Well-Known Member
so what happens at the 7-12 day mark when the ec has hit the floor. The idea of a resirc system is the res remains as constant as possible the whole res cycle.Yeah but Nah . I totally get what your saying, and for most they would have to add water to the res and quickly that would bring the EC down. I don’t advocate adding nutes to a recirculating system ,as it just screws the nute balance, and you start running into other issues.
If you’re indoors hydro then to me the goal is to have your environment controlled, and every aspect of your grow dailed in. If you run a really tightly controlled VPD then you don’t have to add anything, including h2o. Just adjust ph for the first couple of days and then off you go. I get 12-14 days out of a 220 litre res on a 4x4 table.
What dictates a res change is when the ph falls out of range 5.5-6.5, or the level in the res gets too low to pump a feed.
If it works it works but towards the end of each res cycle your starting to invite issues imo. There’s a reason guys running huge resirc systems are spending big money on fancy dosing systems to keep the res at the ph/ec/water levels they require.
not to mention if your using a product like silica which will effect ph as the plant uptakes it