How do you remove pool stains from concrete?

How do you remove pool stains from concrete?

A super simple way to get rid of most organic pool stains is to shock the pool and give your pool a little TLC with a good brushing. This ‘bleaching’ removes most organic stains in concrete pools. Sprinkle granular chlorine shock right over an organic stain to make it disappear instantly.

Why is my pool liner turning black?

If you have black or grey cloud-like stains on the floor of your in-ground vinyl liner, they are most likely caused by bacteria that is living in the ground under your pool. Bacteria sometimes show up years after a pool has been installed.

How do you remove black stains from a gunite pool?

You can try to find an ascorbic acid cleaner at a local pool store and use it to clean the stains, but it cannot be mixed with chlorine, so dechlorinated the pool, or empty and clean it. Always keep in mind there may be another cause to the stains, such as the plaster wearing off and exposing the gunite beneath.

How do I get rid of water lines in my pool?


  1. Remove All Organic Matter. If the pool has leaves, grass clippings, or other organic matter in the water, use a pool vacuum or net skimmer to remove as much of the problem as possible.
  2. Drop the Waterline.
  3. Use a Scrub Brush.
  4. Remove Dirt and Grime.
  5. Use a Pumice Stone.
  6. Try a Commercial Cleaner or Professional.

Does pumice stone scratch pool tile?

Cleaning with a pumice stone takes a lot of time and effort. Depending on the amount of calcium build up this could take hours and hours over several weekends. And contrary to what your pool store or pumice packaging may say, pumice does scratch the tile surface.

Can you use CLR in a swimming pool?

Can I use CLR in my swimming pool? We do not recommend using CLR on or in any materials associated with a swimming pool. CLR should never come into contact with chlorine (or any other household chemical). It can create a poisonous gas and is not safe.

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