Vinyl pool liners, which are protected by special additives and coatings, can withstand the extremes of sunshine, heat, cold and constant exposure to chemically treated water. However, even the highest quality liner is still subject to staining, discolouration and other unsightly symptoms if proper water balance is not maintained, debris is allowed to remain in the pool and if water treatment chemicals are used improperly.
Pool professionals are often plagued by black and pink staining, blemishes from discolouration and bleaching, and byproducts commonly known as ‘pool tar.’ This article will help pool professionals identify the source and cause of various vinyl liner stains, as well as provide tips for removal and how to avoid them in the future.
By Pool and Spa Marketing
https://www.poolspamarketing.com/trade/dealing-with-vinyl-liner-stains-2/