I have a new variable speed Hayward Superpump and new FNS plus DE filter. I’m seeing what I believe is DE settling in the pool bottom and curious if the low running speed of the variable pump has caused some issue that makes DE eventually return to the pool. I can feel it and it has a grainy texture like DE. I was very careful when charging to make a slurry of only 3.5 lbs by weight (weighed it) and have pump at high speed for about 30 min while doing it. A few weeks in, there was DE on the floor which I vacuumed it up with MP valve on filter but it returned within a week.
I previously had and issue with my single speed pump and old filter (same 36ftsq size) which was caused by too much DE. Is there a possibility of continuous operation at low speed (1700rpm) causing the DE to slough off the grids or leak through the grids?
I previously had and issue with my single speed pump and old filter (same 36ftsq size) which was caused by too much DE. Is there a possibility of continuous operation at low speed (1700rpm) causing the DE to slough off the grids or leak through the grids?