
Special Guide 5
Pools Neglected for Months
Swamp-like water needs a careful inspection before any chemicals. Here's how to start safely.
← All special guides
Heavy debris must come out before chemicals can work. Demonstration image.
Before you touch the water
Recovery plan
- 1Net out as much debris as possible. Leaves on the floor eat sanitizer — scoop with a leaf rake (deep bag net).
- 2Clean pump and skimmer baskets. Clean or replace the filter media if it's in bad shape.
- 3Restart circulation and confirm flow (Step 1).
- 4Test water fully, including metals if you see brown or unusual color (Step 2).
- 5Balance, brush, and sanitize per Steps 3–5. Expect multiple label-directed treatments over several days.
- 6Clean the filter frequently — it'll clog quickly with dead algae.

Call a professional when
- Equipment is cracked, leaking, or won't run — or wiring is damaged.
- Water is black/dark and still won't respond after several days of label-directed treatment.
- You suspect sewage, flooding, or animal waste contamination.
- The pool may need draining — especially vinyl or in-ground concrete (risk of liner or shell damage).
- Surfaces are cracked, peeling, or the liner is torn.
Wear gloves when removing debris. Never mix chemicals, and never use more than the label directs to 'speed things up'.