I don’t use the pvc anymore. Just cram an oz or 2 of wet 65-80rh bud into a seal a meal bag and roll into tight ‘cob’ (google Malawi cob curing). Suck all the air out and seal it. Place in 105-130f heat source for 24 hrs to sweat. I use a food dehydrator. let cool then open for about an hour till surface of cob feels dry. vacuum seal and throw it behind the cable box (84*) 1-3 months. You can open and sample weekly so you can experience the changes as your weed improves as fermentation takes place. It brings out the psychedelic in your sativas and hybrids. Makes indica stonier. It makes the bud totally psychoactive when eaten after this curing method.