ahh-some!

On our initial fill about 6 months ago we didn't purge first or wipe down the waterline. With ~30 ppm cya we targeted 6-6.5 chl if getting in, 5 if not, twice a day. Demand ate about 1-1.5 if we didn't get in. I figured the ozone generator was mostly responsible. Within 2-3 months we got foam...