Hello, im new to pulse and have some questions.
How are your graphs looking over night when having a dryback? Can you see an increase in EC while the Vwc decreases? In my graph it shows only EC raises when i water them, usally it should be the other case. (when watering the EC goes down)
Unfortunately im not getting any response from the support via mail or chatwidget 
Hard to say given the information. Its gonna depend on pot size, medium type, how often you water, how much you water, how much its drying back, etc. My PWEC and Bulk EC will increase when I irrigate, but once I reach field capacity and get some run off, then it goes down.
Looking at your graph really makes me wish the axis labels were the same color as the trend they represent.
A couple things that came to my mind are input EC and nutrient composition. If youāve ever done deep water hydroponics, you will have noticed that even at 100% VWC, which is a constant in DW hydro, the EC will always drop over time as the plants take up nutrients, which needs to be periodically brought back up by adding more fertilizer.
If your nutrient is very "balanced* for your stage of growth, meaning the plant is taking up all ions at roughly the same fractional rate, and your input EC is at or below what the plants are capable of absorbing, then the EC will go down over time even with a drop in VWC. If you increased your input EC or were using a less balanced fertilizer, then youād probably see a more common trend of the EC climbing as VWC drops.
But the info above is based on non-organic nutrients. If you were in living soil then it can get a bit more complicated, since roots will absorb the nutrients from the region where roots are until that region is effectively depleted, then either absorb at the rate that new nutrients are mineralized by soil biology or the root zone gets replenished when water flows in from some area with remaining nutrients. You would see different trends whether the sensor was in the root zone vs, say, in an area with a high concentration of top dressing or similar.
Wow, thanks for that answer. Sounds pretty similar to what John from the Pulse Crew says. He assumes too that the plant takes up all the nutrients because of to low nutrient concentration. Im running on 1 Gal Coco Pots with Advanced Nutrients Cultivators Line and my Input EC is at 3.0. Seems they need a bit more to achieve the desired BulkEC over nights and see those increase after stacking some more nutrients in
Iām surprised you would see that declining trend with an input EC of 3 which historically speaking is very high. If you are getting good results then you might want to just stay where youāre at.
And I would caution against āstackingā unless you really want to go through that nightmare learning curve. Stacking is a controlled stress technique, and 9 out of 10 times stress will make your results worse not better.
I most cases with stacking what I see are symptoms of nutrient deficiency or imbalance where the saltiness of the soil becomes so extreme and the nutrients become so unbalanced due to buildup, that the plant suffers.
Iāve seen nitrogen and potassium deficiency (confirmed by leaf tissue analysis) despite adequate input feed, and tip burning from poor calcium distribution (from the plant failing to pull sufficient water from the roots due to osmotic forces preventing root uptake). You can tell I have a bias against stacking lol.
Unless you are a commercial grower with limited space and an economic reason to try to put as many bud sites per cubic foot as you can, my typical recommendation is to keep things mild and happy. Iāve seen massive yields on perfectly beautiful plants at 2.0 EC from beginning to end with lots of daily runoff.
Aaanyway, I wonder what they put in that Advanced nutrients that results in a drop of EC at an input of 3, thatās interesting. Maybe you have a plant that is exceptional at feed uptake.
I agree I accidentally did just double the tiger bloom and one plant thrived other had to be flushed and was looking rough it made it and is the reason I bought the pulse probe. If your grow medium is
Depleted you can add solidās also check your soil PH
