Filler content varying

1. A trimming pump just prior to fan pump can be used to add fillers with main addition further back in system.
— the trimming addition should be under the control of a machine tender to give rapid correction.
2. Where retention aids are used, e.g., polyacrylamide, check the feed rate frequently.
—adjust if necessary.
3. Check for macro-turbulence that extends beyond initial 3 – 5 m of forming area.
4. Check saveall return lines and broke system.
Check out Ash content