Mhhhh a dehumidifier only works with a cooling unit, you can't collect water with a hot circuit, would just vaporize it again. Your system releases warm air, is most likely the hot air coming from the compressor. My hot air gets to the outside over a 150mm aluminum duct from the dehumidifier unit, has two exits, processed air and waste air. Is a multi function thingy, can heat, dry and cool. I only use it on dry or cooling function during summer. Now in winter i have the heater inside the tent. One vent circuit brings the warm raised and most moist air to the outside. And the second brings it from mid tent range to the veg tent to use the less moist air again to heat the tent up more.
The hose ends in the toilet ^^ so no tank issues. But.. no cooling.. no dehumidifier working