what is causing dark patches under my inground pool's Vinyl Liner? Thought at 1st it was algae in pool, but no

The patches are not small, not large....about the size of a man's footprint (not the shape). Had one last summer, it's still there, but now I've noticed two other such spots. Anything I can fix? It's kind of ugly (& if I thought it was algae in the pool, guests likely will, too). Thanks!
I went to the Leslie's Pool Supply Co. in town, and their more experienced person (I have reasonable confidence in her abilities as she's helped me on other issues before) seemed like she'd never heard of such a problem. She said it might be a mold/algae that will eventually 'bleed through' the liner and stain on the inside of the pool. She said there was no product available to deal with it. (

It is a algae which is called black algae. Any pool supply company can recommend remedy. I went through this a few years ago but cannot remember the chemical used. We did get a chemical from pool supply company which cleared it up and never had a problem again. Good luck!

sunmist50

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Do It Yourself Pool Cleaning

Cleaning your Swimming Pool does not have to be an expensive, labor-intensive job. But to keep the interior of the pool clean and fresh will require an unswerving time commitment. You will need to spend four or more hours per week cleaning the pool during the peak swim season, which will probably only be a small portion of the time you plan to spend in the pool and well worth the effort.

1. Purchase the Proper Tools

   • Cleaning the pool will go a lot faster and easier if you use the correct tools, which can be found at your local pool supply dealer.
     A leaf skimmer, which is a long-handled net for skimming leaves, bugs and other debris from the water's surface is a must-have for pool owners.
     A vacuum is also essential to cleaning your pool. Some vacuums connect to the circulation system of the pool, others are equipped with their own power supply. The vacuum will help you to suction out debris that may have settled on the bottom of the pool.
     A wall and floor brush is a nylon-bristle brush used to clean the floor and walls of pools that are made of fiberglass or vinyl or are painted. An Algae brush is a stainless-steel bristle brush used to clear algae from plaster walls.
     A tile brush is used to remove calcium deposits from tiled walls without damaging the grout. A pumice stone can be used on the harder calcium scales.

   Skim Debris from the Surface

   • Using your leaf skimmer, skim the top of the water's surface with the net to remove leaves, twigs, bugs and other floating objects before they have a chance to sink to the bottom of the pool. Using the skimmer will make the circulation system more efficient and will reduce the amount of chlorine you will need.

   Clean out the Baskets

   • Strainer baskets are located on the pool deck of an in-ground pool or attached to the side of an above-ground pool. The leaves and debris should be removed from the strainer baskets at least once a week so that they do not obstruct the flow of water. Keeping the baskets clean will also make the circulation system run more efficiently. If the Pool Filter is dirty, use your hands to remove the debris.

   Vacuum

   • The pool should be vacuumed weekly to reduce the need for sanitizing chemicals and to keep the water looking clear. The vacuums should be skimmed back and forth across the bottom of the swimming pool, slightly overlapping with each stroke just as if you were vacuuming your carpet.

   Clean the Walls

   • Brush the pool walls weekly to clean off the algae buildup and calcium deposits before they become a serious problem. Use a stiff brush for concrete pools and a soft brush for vinyl and fiberglass pools. Do not use anything stiff or abrasive on tile or it will damage the grout. Tile scum at the water line can be taken off with a chlorine-based cleaner and a sponge or tile brush. For really difficult spots, use a pumice stone or nylon scouring pad. Use whatever cleaner the pool manufacturer recommends.

     Or have us do it at www.palmbeachpoolcleaning.com

 

About the Author

DEEP END POOL SERVICE is known for our reliability and quality service for an affordable price. We offer three different service levels to fit your needs and budget. Deep End does offer the best prices on equipment and repairs in South Florida. We service any pool of any size, from residential to large commercial pools in the Palm Beach county area.

All of our staff will come to your house or place of business in uniformed attire with the Deep End logo for your safety.

Our guarantee is simple, if you have any problems with service or dependability you can always reach Scott Franck President of DEEP END POOL SERVICE, INC. at (888) 611-3039 press option 4 and speak with him personally at any time.

Deep End Pool Service is licensed with the National Swimming Pool Foundation. We do carry the Certified Pool Operators (CPO) license (33~288718) and all proper insurance.

 

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