I installed a system about 6 months ago, shortly before it started getting cold for winter here in new mexico and so far is working great. No smell when i open the tank to top up the organic material. However, now that the weather is warming up i noticed flies coming in and out of the tank. So my question is does the tank need airflow? I could put weather stripping on the lid to prevent the flies from entering and exiting. But does the tank itself need to breath?
Thanks in advance