I think a 50gl rez should suffice. You could always set up a float valve that if the rez fills up to a certain level it will shut off the water. But @ 10% runoff every 3 days shouldn't be a problem with a 50gl rez.Experimenting with coco, and I need to size a DTW res that will last me 3 days for 42 3 gallon smart pots at 80/20 coco to rice hulls, under 4k DE. Auto water, aiming for about 10% run off.
Thanks in advance.
Manually? So why the 3 day mark ? Get a wet/dry vacuum water them normally. If you can reach each plant individually just place them in 15" saucers and vacuum the runoff individually. If you cant get to all of them easily then get a submersible pump to drain the rez as it fills.@Mr.Xagain I forgot to add that I intend to feed up to 4-5 times a day during peak flowering. You still think 50 should be fine? And I'll be filling the rez manually so I won't need a float valve or anything. Thanks for the idea though.
3 days because I run OSA28 (silica) and at around 3 days in the rez it becomes less available to the plants, so I might as well just mix a new batch every 3 days.Manually? So why the 3 day mark ? Get a wet/dry vacuum water them normally. If you can reach each plant individually just place them in 15" saucers and vacuum the runoff individually. If you cant get to all of them easily then get a submersible pump to drain the rez as it fills.
As far as vacuuming the runoff, I won't be able reach each plant easily when they get larger. I figured I'd just have a layer of clay pellets at the bottom of each smart pot and let the run off linger in the saucer.
NO !!! Unless you really put an ample amount of pebbles is a lot. Your gonna get toxic salt buildup and even if the medium doesn't stay submerged, the evaporation will translate to humidity wich will most likely lead to mold during flowering.3 days because I run OSA28 (silica) and at around 3 days in the rez it becomes less available to the plants, so I might as well just mix a new batch every 3 days.
As far as vacuuming the runoff, I won't be able reach each plant easily when they get larger. I figured I'd just have a layer of clay pellets at the bottom of each smart pot and let the run off linger in the saucer.
How many plants are you watering?i would recommend a little bigger than 50 i make my water every day for 2 feeding in coco and for one day i go threw about 15-20 gal. play it safe brother coco sucks it up water
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