Hey so I have a nice little grow room that I built the only problem is my only air exhaust option is a 2 inch pipe originally used for the bathroom fan since I live in a condo. I previously had a 4 inch inline fan runing through 4 to 2 inch reducer. Then switched to 6 inch inline fan connected to a 6 to 4 inch reducer and another 4 to 2 inch reducer. While they are both far from my ideal setup my question is which would be better. Below is a pic of the 4 to 2 inch adapter on 2 inch pipe and current 6 inch fan setup with 6 to 4 inch reducer taped on end. The 4 inch fan is currently being used as intake fan. As of right now I’m leaning towards leaving it as is but wording the double reducers are doing more harm then good let me know if anyone feel opposed and really explain why.
