Mephisto Chemdogging RDWC grow

DAY 22 The RH has been gradually increasing the last few days and I will soon be able to remove the humidifier. The plants are transpiring more water vapour as they increase in size. Decided to remove some of the biggest, chunkiest fan leaves and have reduced the EC again to 0.4 DAY 23 *** A GOOD LESSON LEARNED! *** The last couple of months I have been wondering why the tent has been almost touching 30C and today I learned why!! I noticed that I had positive air pressure in my tent - NOT GOOD. At first I thought either the fan controller or the extractor fan itself was faulty but when I disconnected the carbon filter, the tent instantly reverted to strong negative air pressure. It turned out that I had not cleaned the dust jacket on the carbon filter for months and months (11 months, to be precise) and it had become almost completely blocked. Now that it is cleaned I have a healthy negative air pressure and a temperature drop in the tent of around 4C - sweet!! Applied more LST to the 3 topped plants (left hand side of tent) and removed the pair of lower-most shoots on each main branch of most of the plants. DAY 25 My plan has always been to have the tent lit by four 240W LED units. Today saw that happen - I have just installed another 2 identical to the 2 already in place and I have removed the CDM and the HPS lamps. The girls are now basking under 960W of GN (GrowNorthern) Telos 0008 lighting. I am defoliating the 3 plants on the right of the tent - started today. This means I have a column of 3 topped plants, a column of 3 left alone plants and a column of 3 defoliated plants in the tent. I will make a graphic to illustrate... DAY 26 Defoliated plants have filled-out in 24hrs - see pics DAY 27 Removed humidifier as there is enough transpiration to maintain tent around 50-55% RH. Applied some LST to the bottom right plant in the tent which is younger than the others but doing very well. From today using Shogun Hydro Bloom - flowering is underway on 8 out of the 9 plants. DAY 28 Plants seem to have taken on a new lease of life since getting 100% LED lighting. Tent is around 4C cooler. I pruned most of the plants again today - removing low-yield shoots. Also did more LST on the youngest plant.