STEP 4/7
0%
Step 4
Brush the Pool
Algae and biofilm cling to walls and hide in corners. Brushing lifts them into the water where sanitizer and the filter can deal with them. Use a brush that's safe for your surface.
What You'll Need
- Telescopic pole
- Pool brush matched to your surface (see below)
- Pump running
What To Do
- 1Start at the waterline and brush downward toward the main drain in overlapping strokes.
- 2Work around the whole pool: walls, then steps, benches, ladders, and behind lights.
- 3Spend extra time on corners, step edges, and shady spots — algae loves them.
- 4Finish by brushing the floor toward the main drain.
- 5On a very green pool, brush at least once a day while treating.
Photo Guide


Which brush for which surface
- Vinyl liner
- Nylon bristles only
- Fiberglass
- Nylon bristles only
- Concrete / plaster / pebble
- Nylon for routine; stainless steel for stubborn algae
Stainless brushes can tear the liner.
Steel can scratch the gel coat.
Follow your plaster finish installer's advice. Never use steel on painted surfaces.