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I just had a similar problem so I'll tell you what cleared mine up. I wasn't using enough Algaecide in my pool to correct the problem. I have about 32,000 gallons and the pool company recommended a quart and a half of an algaecide with 7% copper. I found mine at WalMart and it only had 3% copper, but it worked fine. Some of the products do not contain copper, they informed me, and copper is a necessary ingredient to kill the algae. Pour it in and let it sit overnight. Then vaccumm to WASTE the walls and bottom. The algae is so fine that it will remain in your filter and keep flowing back to your pool if you vac the pool in the normal way. The Copper ingredient bonds to the algae for removal. After the pool is clean, add a few ounces of the algaecide each week. I need to add about 6 oz. Let us know if this works for you.
add a poly 60 or a 7% copper based algaecide if you dont have a heater on the pool.
Any pool can have copper. Source water may have it in it. Some pools have copper plumbing. Most pool heaters have copper heat exchangers. If your pH or Alkalinty levels are lower than recommended, then the copper in the plumbing or heater can be stripped out and stain the pool plaster a bluish-green color. Some allgaecides even use copper which will also stain. You should also take care using copper algaecide in salt water pools as they may cause problems with the chlorinators.
It might otherwise use a copper based algaecide at the same time and that should do it.
You don't have to mix the algaecide in a bucket of water, you can put it directly in the pool. I use Polyquat 60 that comes in quart bottles and add about 4-6 ounces per week. Just walk along the edge of the pool and pour it at the edge while walking. No algaecide will "eat the paint". It's not acid. In fact, all the algaecide does is strip the cell walls of the algae and make it more susceptible to the chlorine. It's the chlorine that kills the algae. However, one algaecide with a side effect of staining is Copper. It's a very effective algaecide, and it's safe - but it will stain concrete pools if it's used in a high enough concentration. And Copper can stain blonde hair as well. That's why I don't recommend using it. The preferred algaecide is Polyquat 60.
Copper Sulfate, also known as Bluestone. Used as an Algaecide in commercial pools
I've personally never tried the chemical or heard of anyone that has, but heavy metals, such as copper, is not healthy for fish. Many types of pool algaecide are formulated to kill all living organisms in pools from algae to larvae. So it would stand to reason this would not be ideal for fish.
yes, just don't use too much I would not recommend using copper sulphate in a pool. It is an algaecide but it stains pools and is what causes hair to turn green. There are better algaecides available. It is not a sanitizer and is not a substitute for chlorine or bromine.
I suggest you contact the manufacturer of the algaecide and find out from them what would be the bes coarse of action.
By killing the green algae with an algaecide available at your pool shop.
Adding algaecide to the pool when the filter is on should not do any harm in fact it should mix it into the water more quickly
Assuming that your pool is 24 Round 52" Walls, Roughly 14,435 Gallons. Amount to be used will vary depending on the algaecide used. We normally recommend refering to the label of the algaecide you are using. We use Blue Wave Halt50 Algaecide with our winter closing chemical packages which recommends using 5oz per 10,000 gallons for booster dose. Follow this link for a great deal on a blue wave winterizing kit. http://www.royalswimmingpools.com/chemicals.htm#winterchems