Iv had my hygrometer in jars for a few weeks and put it back in tent few days ago and running the 250w mh now and it’s reading 20. For two days in a row. It raised up to maybe over 30 when I done res change. It’s been non stop rain for the last two days. How can it be so low. And is there any thing what can help sort it sout ASAP ? Thanks.
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