First thing, I am newbie pool owner and I have learned a ton here....thanks to all those who help OK on to my question, I used the tri-Cl pucks for Cl for the first couple months after our pool was built and once the CYA got to 40 I stopped and started to use liquid bleach. I got super busy with stuff and didn't add or check levels this week. I know..I know silly/stupid. This afternoon I walked over and the sides of the steps and the walls in several places had a yellow stain. (mustard algae?). I checked the level and it was ...nothing. Yikes, I dumped 3 gallons of pool store 12% bleach in it and brushed the walls. (creepy crawly is running when pump is on 9hrs/day). The stains brushed off and I have the pump 24/7. I ordered Ben's kit but it was like 2-3 weeks ago so I have not received it yet. I say that because I can't measure my Cl levels with my little up to 3ppm kit. Using the best guess my Cl level should be pretty high though. Water actually looks pretty clear, maybe a little cloudy. I will keep an eye on pressure and clean filter often as the algae gets removed. What do I do now? Do I need to vacuum it and dump water into yard? I have seen tons of algae things at PS, do I need any of those? I am little freaked out as this is my first water boo-boo.