I have just started my SWG this last weekend at 25% for my circupool edge 40 for a 23k pool and with CYA-70 I'm still at FC-8.5 as of last night. This is in TX heat. Pump is currently running 24/7 @ 1800 rpm. Lower RPM and I loose the spa spill over. As TP once sang- I won't back down.
I run mine around 1800 RPM and have my Edge at 3 or 8 bars and also staying around 8