| Pall rings (EPA's)
Yupp - JR looks like EPA's commonly used when we started with Nishikigoi. What type/szice are you using today?
Today the industry here mostly uses type A and B when setting up new systems.
We made our first ever bio system with ETA2 (ø100) and have worked our way downwards since on the TT we have been through all from 40 (ø40/EPA1) and down to 10. Best results so far has been with 20 and 25. |