FC/CYA recommendation straight from Hayward-good for a laugh

[BuckeyeChris]

I snipped this from the manual for their DE filters. Just thought I'd share. From what I've learned here, FC of 3.0 is the minimum for a pool with CYA of 30 IIRC......

 

[woodyp]

Remind me......NOT!!!........... to try that some time.