My inside trays which I use tap water for as well stay under 100 so I'm not sure what the difference could be from. Could pollen and dust in the air cause the jump? The only other thing I could think of is I think maybe my cat peed in my bag of peat. when I was potting these plants up I definitely smelled ammonia. I didn't put 2 and 2 together until a few days later when I saw my cat jump out of the bag of peat.
any ideas should I get a few gallons of distilled water and flush it all out?