Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: algae stains/stuck on bottom

  1. Back To Top    #1

    algae stains/stuck on bottom

    We choose to leave our pool up all year, uncovered. by the time summer hits, we have a MESS!! We pressure wash the sides and the bottom. This year the sides came pretty clean, but there's dark algae still on the bottom. It would take hours to get all that off the bottom. We chose to leave it and are currently filling it up. The pool is about 4 1/2 feet deep when full. How can I clean that stuck on algae off the bottom? What chemical would eat that off? We also don't have a vacuum, as the one that we use that came with the pool is not good at all. do I need to buy one that people use for a built-in pool? We hope there is something that will kill that stuck on algae and we will just empty, spray the loose algae out, and refill.

  2. Back To Top    #2
    BoDarville's Avatar
    Join Date
    Jun 2012
    DFW, Texas

    Re: algae stains/stuck on bottom


    Welcome to TFP

    Are you absolutely sure that the stains are algae? One way to find out is to take a trichlor puck and place it or rub it gently on the stain for about 30 seconds. If it fades, then it is algae. If it does not fade, take a Vitamin C tablet and place or hold it against a stain for 30 seconds. If the stain vanishes or lightens noticeably in that area then it is from metals in the water and not algae.
    Gold Supporter, TFP Lifetime Supporter, 26,680 gal Plaster IGP 3.5 - 10' depth / Attached Waterfall Spa, Manually Chlorinated, Triton Sand Filter, 1.5 HP * 1.1 SF = 1.65 SFHP 1-speed Pentair WhisperFlo WF-26 Pump, 400K BTU NG Teledyne Laars Series One Heater, Polaris 360, Test Kit Comparison, Chlorine/CYA Chart, SLAMing Your Pool, OCLT
    A good test kit is an investment, not an expense.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts