We have learned so much from your podcast and Deep Dives. Our blotch struggle began last year. By applying your methods we were able to eliminate it....so we thought.
We have a shallow well and blotch has reared its ugly head again this fall (same time last year blotch appeared). We have added U.V. sterilization and filtration system which has helped immensely. The water table fluctuates and filter maintenance fluctuates with it. Water table is low right now, changing filters twice a week. Still problems with blotch.
Watched Blotch 2. Put a reservoir with peroxide 1/10% concentration of hydrogen peroxide and noticed beneficial changes almost immediately. In my research on well water filtration I came across this video. This is excellent information on hydrogen peroxide treated water.
I hope this helps anyone. Keep producing content!!
Spencer