regarding availability of 1 micron filter bags -
I recently found the same issue with bags, none were to be found anywhere. I also was considering an oversized bag to reduce back pressure from the filter, so I started researching felt material. I found some material from Duda Energy (dudadiesel.com). If you have access to a capable thread injector (some lady folk call them sewing machines) it cant be a difficult build. I just received 5.5 meters of material wide enough for a 20 inch diam bag for the price of one small bag ready-made. And I can make the bag as long as I have room in my shop.
Not saying its the perfect choice, but I'm betting I can get better performance from my oversized bag than if I bought a standard bag - for not much effort.
I recently found the same issue with bags, none were to be found anywhere. I also was considering an oversized bag to reduce back pressure from the filter, so I started researching felt material. I found some material from Duda Energy (dudadiesel.com). If you have access to a capable thread injector (some lady folk call them sewing machines) it cant be a difficult build. I just received 5.5 meters of material wide enough for a 20 inch diam bag for the price of one small bag ready-made. And I can make the bag as long as I have room in my shop.
Not saying its the perfect choice, but I'm betting I can get better performance from my oversized bag than if I bought a standard bag - for not much effort.