How much algecide do you put in a 27 foot round pool with no signs of algecide?

To determine how much algecide to put in your 27-foot round pool, you will need to know the volume of the pool in gallons. The formula to calculate the volume of a cylinder (which is the shape of your pool) is V = πr^2h, where V is the volume, r is the radius of the pool, and h is the height of the water.

Assuming your pool is 4 feet high, the radius would be 27 / 2 = 13.5 feet. Plugging these values into the formula, we get V = π(13.5)^2(4) ≈ 7,238 gallons.

The amount of algecide you need will vary depending on the specific product you are using. Always read and follow the instructions on the product label carefully. Typically, you will add a certain amount of algecide per 10,000 gallons of water. For example, if the product label says to add 1 ounce of algecide per 10,000 gallons, you would add 0.72 ounces (or about 20 milliliters) of algecide to your 7,238-gallon pool.

It's important to note that you should only use algecide as a preventative measure or when you first notice signs of algae growth. If you have a severe algae problem, you may need to use a different treatment, such as chlorine shock treatment or a clarifier.