Using a standard, nylon (very important) bristled pool brush. Brush the walls and the floor of the finish toward the main drain. After that, regular maintenance may . Milliard 5' Heavy Duty Wire Pool Algae Brush, Designed for Concrete and we wouldn't recommend this for regular use on a Pebble-Tec (or similar) pool. Visit my Website: http://www.swimmingpoollearning.com/ YouTube Video Index – A list of all of my . Leslie's Black Algae Killer eliminates and blocks Black Algae. Dosage: 12 . I brushed the pool with a steel brush (which Leslie's does not sell - go figure). Warning: Be prepared to do a lot of brushing. I suggest buying a good quality pool brush If you click this link and make a purchase, we earn a commission at no . BRUSH POOL - Next you need to brush off the black spots vigorously with as stiff a brush . and shock and treat w/ black algae killer (did not work first time from major chain. . I have a dark finish pebble tec pool which also runs on a DE filter. After the first few days of pool ownership, nobody likes to brush their pool, and . plaster or exposed aggregate finishes such as Pebble Tec or Diamond Brite, . shock, algaecide, algae preventive or algae killer you use, the surface must be . Regular brushing of seemingly clean pools is not only good exercise for you, but . a small amount of surface foaming and are not known as strong algae killers. Brush and vacuum your pool on a weekly basis. Brushing will remove dirt and spores, and prevent algae from taking hold. Brush the walls, floor, and steps of the .