This is the Multi Doser for the Mydro Lab System. Simply select your grow mode from the wireless push button interface on the Mydro Lab Master Unit (not included). This applies for both "run to waste" and "recirculating" systems.
1 x Mydro Lab Master Unit. Due to the industrial grade pH and EC probes used in our systems there is no need to run a "sample pot". Simply throw the probes into your reservoir and let them sit at the bottom.
It provides FULL CYCLE automation for "run to waste" and "recirculating" systems including straight perlite, DWC, bubbleponics, aeroponics and flood & drain. Simply select your grow mode using the push button wireless interface on the Master Unit.
Can't say i've experienced ph fluctuation with any of the batches of nutes i've made up in the past. But that's probably to do with the fact i stand and balance the water first for a minimum of 3-4 days in a plastic bin with a aerator before using it in a new batch.
If nutes are altering the ph levels while using balanced water (using the above method), i'd be looking at changing nutes.