what is the thesis of recirculating the nutrients

[skunk numba one]

Is recirculating nutrients still a good practice or what benefit is there

 

[mexweed]

I would venture a guess that having the flow of airstoned water running over the roots is good for them, and you have a single reservoir to tend that feeds a number of plants

 

[armedoldhippy]

short-term, shouldn't be a problem. long-term, they will get out of balance in all likelihood due to unequal upload rates of different compounds. damn near all i have read say this, but i have no proof myself. i toss everything once a week in my DWC when running. works for me...

 

[Dnzl]

Bubblers work ok for keeping nutes mixed and solution airated but recirculating the solution keep a constant mix!

 

[plumsmooth]

It seems like when you have a LARGE inner bucket filled with Hydroton/Expanded Clay i.e. L.E.C.A. recirculating makes a lot of sense, no? I mean the ROot Mass that forms in my Power Grower inner Bucket is some times or often larger than the roots coming out? Unlike a small net cup where all the Roots are OUT side of the Holding area?

 

[bs0]

Is recirculating nutrients still a good practice or what benefit is there

Recirc will work for a while, your plants aren't 100% efficient with nutrient uptake. Sometimes you can go weeks without needing to do more than top-off w/ proper strength solution... But eventually your plants will suck up enough discrete nutrients that the water becomes deficient, and your ppm meter won't tell you the imbalance.. Ppm meter only says TDS.

Back when I was lazier I'd run for 30 days at a stretch without drain/refill rez. Some phenos will have no issue, but some won't. Now with my recirc racks I drain and refill every 2 weeks. With that schedule it works great for me.