Mystical Flower
420 Member
There are two VERY different techniques used by growers. Definition 1 Flushing to remove salts. Definition 2 Flushing at end of flower. They are completely different things that many use the same words for.
Definition 1. For many growers using salt based nutrients, salts may accumalate and cause problems. Basically, if you have 5 gallons of soil you run around 10 gallons of water through the soil to remove salt build up. There is a little variety to the amount of water used, but the idea is to remove excess salt. Usually, this is done once or twice during an entire grow. Flushing in this way is used to "reset" the soil and to correct problems as needed. You dont have to flush, but its a useful tool when you run into problems.
Definition 2: Watering with plain water in the final weeks of flower. Yes ! People call this flushing too, but its completely different than the flushing listed above. This simply means feeding plain water and no nutrients for a week or two end of flower, very different than flushing large volumes of water through soil to remove salts.
This hobby has some work to do with its terminology. It can be very confusing...How do I know? I'm a newbie with only a few grows under my belt. This was difficult to understand until I realized people were using the same word for two completely different things...
Definition 1. For many growers using salt based nutrients, salts may accumalate and cause problems. Basically, if you have 5 gallons of soil you run around 10 gallons of water through the soil to remove salt build up. There is a little variety to the amount of water used, but the idea is to remove excess salt. Usually, this is done once or twice during an entire grow. Flushing in this way is used to "reset" the soil and to correct problems as needed. You dont have to flush, but its a useful tool when you run into problems.
Definition 2: Watering with plain water in the final weeks of flower. Yes ! People call this flushing too, but its completely different than the flushing listed above. This simply means feeding plain water and no nutrients for a week or two end of flower, very different than flushing large volumes of water through soil to remove salts.
This hobby has some work to do with its terminology. It can be very confusing...How do I know? I'm a newbie with only a few grows under my belt. This was difficult to understand until I realized people were using the same word for two completely different things...