Humidity Levels

I’ve seen those dehumidifiers work really well, hence the price of them. I feel like somethings wrong… 50% shouldn’t be a problem for that thing at all.. are you emptying it 3-4 times a day? That’s the norm for the container it comes with. That’s why most guys use the attachment and a larger bucket. Are you trying to dry out your lung room or is this ported into the tent? If doing the lung room may I suggest trying the tent?

If vpd is around 1.1 based on atmospheric readings, then it is lower at the leaf surface, which is what matters. Reference or calculate VPD based on leaft surface temp, which will be 3-4f less than atmospheric. if that changes anything said below, adapt appropriately. Dehumidifier... that reduces humidty. there's really no other option that will control it. In some contexts, exhasting 'outside' will help reduce RH, but not if ambient RH is higher than your target and likely needs to be lower than your target by a good amount. outside means any other area that can't easily backflow into the room that the tent resides... most likely outdoors, but if the room is mostly sealed off from where it exhausts, it can have a similar effect - remoing mosisture form the volume of space around your plants. But again, if ambient RH is not conducive, this won't do much for you. Always buy bigger dehum than you need - as you should with the duct fan. If it has to run continuously with the only breaks coming when it goes through an autodefrost cycle, it's probably not going to last long. Look at "ppd at AHAM" rating, not "ppd at suaturation" (pints per day) to make sure you are comparing apples to apples. Think that is 80F / 60% conditions, if i recall. Other options -- smaller canopy, which ... probably not an option if already in a 3x3 or 4x4. side note - when you lollipop, leave more leaves... you can remove a branch and not take off those awesome leaves.