Step 5: Backwash the Filter

Clearing the filtration
Photo: Craig Raine
«»
• Turn the filter valve to "backwash" to redirect water flow.

• Most pools use one of three kinds of filter: sand, diatomaceous earth (DE), or cartridge. In a sand filter—no longer used in new construction—sand blocks dirt and oil; the backwash directs the dirty water to a waste line leading to the ground or a storm drain. With a DE filter, the claylike remains of marine organisms do the filtering and the backwash directs the dirt into a filter bag (empty every other week and replace every few years). Replenish the DE by sprinkling it into the skimmer well. A cartridge filer is a removable unit that you hose off and reinsert. Consider replacing sand with a DE or cartridge system; both clean better, save water, and are better for the environment.
Ask TOH users about Pools, Ponds & Fountains

Contribute to This Story Below

    Tools List

    • Pool Vac
      Pool Vacuum w/ Nylon Brush Extension
      for removing algae around the pool
    • scrub brush
      Scrub Brush
      for removing algae on concrete

    Shopping List

    1. CHLORINE

    2. MURIATIC ACID

    3. SODA ASH

    4. DIATOMACEOUS EARTH