Block Unwanted Algae All Year Long

Pool Blocks serve as an all season, extra-strength algaecide that will keep your algae at bay. These slow release solid tablets are suitable for all chlorine and salt water pools. However, we do not recommend this product for concrete pools. Pool Blocks eliminate green, mustard, and blackspot algae in order to deliver clear, shiny pool water. This product is so efficient, that they are commonly used in commercial, hotel and resort pools. Containing twice the active ingredient than competitor algaecide products, this treatment extends over a lengthy period of time. Regular use of Pool Blocks will keep your pool sparkling and blue if your chlorine or salt levels drop.

What Exactly Are Pool Blocks?

Pool Blocks contain an active natural trace element, ionic copper salt, which is chemically complexed to ensure the longest effective treatment period and prevent reactions with other pool chemicals. Naturally, Pool Blocks contain a food grade ingredient that make this formula highly effective, with very low concentrations. Pool Blocks control all forms of algae found in fiberglass, vinyl, tiles, paint and pebble swimming pools. Once Pool Blocks are able to remove all algae, less chlorine and salt is required to maintain sanitization levels; saving you money and time.

Pool Blocks Tips & Tricks

Another benefit of Pool Blocks is that they can be stored for years, and only become active once they are dissolved into your pool water. The constant low level of year-round algae protection acts as a first line of defense for your pool health. Chlorine is a short-term treatment to kill bacteria, and research has shown it is most affective when combined with an algaecide based product. When using Pool Blocks, for best results maintain the pH level of your pool to be between a 7.2 and 7.6.