Chlorine effective against microorganisms when used alone, but against the effects of algae is limited. For this reason, chlorine shock, pool water should be applied frequently. That smell, eye burn and cause problems in some whitening. Liquid seaweed is used together with anti-chlorine bactericidal effect of chlorine is in harmony by strengthening the pool water a minimum of 60% and reduces the amount of chlorine needed to effectively prevent the formation of algae. Therefore, cost-effective. Especially effective and long-term has the power to destroy. Rapidly destroys the biological deposits already formed. Prevents the formation of new algae. Lose its effectiveness for a long time, even in hard water. Very high concentrations even in biological pieces and is not harmful to the environment. Algaecidlere compared to other less used because of more effective and thus minimized the effect of bubbling water.