Filter stopping negative pressure

On another note temps last night with cool air being drawn in from near a closed window (where the room Is coolest) the temps sat between 25/26c or 77/78.8f during flower given what iv read I’ll Be happy with that

onewheeld said:

Iv thought about the other filter ill probably drill the rivers out and sort it so it can be used as a filter on intake saves it going to waste

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Yes, I’ve done that as well but have found out that if u wrap the clogged half with plastic wrap forceing the air to go thru the cleaner half of the filter and leaving the rivets alone works well as well