The basic maximum water supply with our pump systems is based on the on/off cycle: they should to be off 2x longer than they're on. So if on for 10 seconds, should be off for at least 20 seconds before turning on again. They will still work fine if less than that be it can shorten their life quite a bit.
Make sure to only soak the base, not the top with the digital read out! If you do the standard Blumat setting of turning the top down until just one drop clings to the 3mm tubing and then turn the top knop down 2 of the triangle markings, that in general corresponds to a 120 mb reading on this meter.
With real-time moisture monitoring and responsive, moment-to-moment water supply, irrigation becomes an opportunity to let plants self-regulate in response to air conditions.
All growers fear the crippling results of under-watering your plants, but can the true killer be over-watering. This article discusses the proper ways to achieving beautiful perfect plants in regards to air, water, and the different irrigation methods to achieve just this.
Every cannabis grower knows the perils of improper watering. And most can recall a time or two when they damaged the health of one of their girls through an overzealous watering schedule (or simple forgetfulness). But few recognize the epidemic of ongoing, low-level overwatering – both in at-home amateur grows and larger, automated operations.
Posted March 24th, 2017 by Jack Bohannan in the May-June 2017 edition of Professional Marijuana Grower
All growers have done it: damaged a plant with erratic watering practices. But for cannabis cultivators, the compromised health of just one or two prized plants can significantly impact the bottom line. Experienced growers rarely let dehydration occur, and larger greenhouse grows incorporate systems that all but guarantee underwatering doesn’t happen. Yet the painful memories and guilt of underwatering persist in the minds of even the best cultivators and sometimes lead to the less recognizable sin of continual, low-level overwatering.