There is a product by Natural Chemistry called Instant Pool Water Conditioner shown here. I wrote about this product on this forum in this thread. It is basically a slurry of the sodium cyanurate salt which is why it dissolves much more quickly than Cyanuric Acid itself and is fairly close to pH neutral (unlike pure CYA which is acidic). Once in the water, it produces the same CYA as when using pure CYA. It is, however, about twice as expensive. So this is a cost/convenience tradeoff.

Patent 6,207,177 describes a process of making a slurry of sodium cyanurate, but I've communicated with the inventor of the Instant Pool Water Conditioner product and it is not based on this patent (i.e. it uses a different process for creating the slurry which was particularly challenging to make).

Richard

Richard