Humidity

Hi my pals aving trouble with is humidity in is flower room , he's had a dehumidifier on 24/7 but it's only taking it dwn to 70 % , he's tried a few different things ( fan on full ) off ect but can't seem to get it dwn he's also at wk 5 of flower , cheers

try a tray of cat litter if your looking for a quick fix along with the dehumidifier this should do the job also hows your extraction this can greatly effect humidity if not pulling enough

He's got a 6" extractor , it's pretty powerful mate I,l let Him no bout cat litter lol

is the extractor hooked up to a carbon filter, if so you cf efficiency to work drop once the the gets to the 70 plus mark,

Sounds like he is exhausting in his home in cold weather, this creates high RH. He, you need to allow that colder air in now and then during the day and night, this will dry out home and drop RH. Continuing using de-humidifer out side of grow room, not in.