Slippy One Posted December 14, 2023 Share Posted December 14, 2023 38% rh max?! Please share the secret to such low humidity, mine’s over 60 some nights no matter what I do. 3 Link to comment Share on other sites More sharing options...
KC Posted December 14, 2023 Share Posted December 14, 2023 Mine is always low this time of year, I assume because the cental heating is on. I'm averaging 46% in flower and I've just added a humidifier to the veg tent, it's up to 42% now. 1 Link to comment Share on other sites More sharing options...
GreenVision Posted December 14, 2023 Share Posted December 14, 2023 @stu914 Hi ya mate, once again I feel for you. I spent 6 hours trimming my Autos yesterday. They were over 9 weeks and ready enough, but I'd like to have left them for another week. Same thing as yourself, went in and found two huge lumps of mold. Oddly enough my temps and humidity have been really good up in the loft. Gutted. Just our climate I suppose, even the fresh low humity air actively pushed in caused mold. Fingers crossed you get enough from them either way though mate. 1 Link to comment Share on other sites More sharing options...
MindSoup Posted December 14, 2023 Share Posted December 14, 2023 2 hours ago, Slippy One said: 38% rh max?! Please share the secret to such low humidity, mine’s over 60 some nights no matter what I do. 2 hours ago, KC said: Mine is always low this time of year, I assume because the cental heating is on. I'm averaging 46% in flower and I've just added a humidifier to the veg tent, it's up to 42% now. I tend to find it easier to keep my humidity down in winter. The outside air might have a high relative humidity, but it can't hold a lot of water, so once you bring it indoors and warm it up it's got a low relative humidity. I've pretty much had my fan on the lowest setting for weeks just to keep my rh up, even with a full canopy. My heating is actually set lower and on less than previous years... 3 Link to comment Share on other sites More sharing options...
MindSoup Posted December 14, 2023 Share Posted December 14, 2023 11 hours ago, stu914 said: Well after a pretty stressful grow it's been a dismal finale....discovered mould on a couple today, nicely hidden away Gutted for you mate, at least you caught it before it ruined the whole crop. 2 Link to comment Share on other sites More sharing options...
Shumroom Posted December 14, 2023 Share Posted December 14, 2023 Well caught before it became a disaster Atb 1 Link to comment Share on other sites More sharing options...
stu914 Posted December 14, 2023 Author Share Posted December 14, 2023 Afternoon all, Thanks for all the comments and replies... @MindSoup Cheers bud, that's cleared up something that's puzzled me for years regarding low winter humidity, never could get my head round it before... Here's the buddage hanging around...not much yield but chunky with a good coating of snow... Keep in mind, these were clones flowered just rooted at around 3" tall and along with the trauma they suffered, it's a pretty good return. Clones of this strain retain one main cola with very little (if any) side branching, could have had double the amount in this space. Now just for the root porn lovers... ...only got to clean up the pots and pebbles all to be re-used. 'til next time 5 Link to comment Share on other sites More sharing options...
Slippy One Posted December 14, 2023 Share Posted December 14, 2023 15 hours ago, KC said: Mine is always low this time of year, I assume because the cental heating is on. I'm averaging 46% in flower and I've just added a humidifier to the veg tent, it's up to 42% now. Must be a new build well sealed. Mine’s a draughty old gaff, it’s 70-80% rh outside and too much of that gets in! Link to comment Share on other sites More sharing options...
MindSoup Posted December 14, 2023 Share Posted December 14, 2023 Air at say 4° and 100%rh, will be 37%rh at 25°, so as long as you can keep your temps up it's better than 20° air at say 50% Link to comment Share on other sites More sharing options...
KC Posted December 15, 2023 Share Posted December 15, 2023 7 hours ago, Slippy One said: Must be a new build well sealed No mate, quite the opposite in fact. It's circa 1900 and it's extremely draughty. Summer I have really high humidity and winter really low, I've always put it down to the central heating being on Link to comment Share on other sites More sharing options...
Slippy One Posted December 15, 2023 Share Posted December 15, 2023 My radiators make zero difference to my humidity, mind you, they’re not on much as I walk around wearing thermals to save money. 2 Link to comment Share on other sites More sharing options...
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