Revisiting problem of rising CO2 at night

[SwoleGrow]

Yup I set mine to reach max ppm in an hour when the room is empty of plants. Allows for dispersal and equalization of CO2 so you don't get that creep after it shuts off

The holes in your C02 tubing, did you drill those or were they predrilled with purchase? Also what size are the holes and are there spacing requirements so that the C02 isn’t rushing out of the 1st few holes and not making it around the room to the last hole in the tubing? Thanks in advance