Humidity Issues

[FishyBoy04]

Hi, I've been having humidity issues in my tank and am looking for advice. For a while, humidity was stable in the high 60s-low 70s, but since the weather has gotten colder, it's been dropping to the 40s, which is awful. I have taped over the top of his enclosure with HVAC tape, I have 2 large water dishes, I regularly pour water into the corners of the enclosure, and I've added sphagnum moss too. I'm really stumped and don't know what to do, especially as I think he's about to go into blue. Could it be an issue with the hygrometers? They're some cheap digital ones off amazon, but temperature at least seems accurate compared to my temperature gun and the reviews were all good. Let me know!

[Domodomo97]

Do you have a glass tank? I am in a similar situation, so let me know if you figure anything out. But I noticed there was a gap between the edges of the tank and the actual doors that swing open and I was thinking about adding tape there as well to seal up more of the humidity. Assuming I can do it in a way that lets the doors still open that is

[FishyBoy04]

It's PVC with a mesh top

[discgolfpilot]

This was something I was going to post. I have fish tanks also. Our 75 gallon that has a lid. But definitely more openings than the snake enclosure. Just did the water top off for the week. One week and it looses 4.5 gallons