Green Pools?

Question

Okay.
My pool is green.
It was crystal clear then over two days it just went green.
The pool guys came and said all the chemicals were correct.
Then we thought it wa the sand filter.
So we bought a brand new sand filter.
And guess what...The darn pool is still GREEN..



Any suggestions??
Or Anyone know what might be wrong?

Answer 1

Actually Grandma of 2 got it only partially right. You don't need to add any algaecide to the pool and don't add ANY chemicals until you get a proper analysis of the water performed.

Did the pool guys come out and give you a reading on the pool or just tell you they were "good"?

If possible take a sample of water down to your local pool store and have them test it. Make sure they test for the following:
Total chlorine
Free chlorine
Combined chlorine
pH
Alkalinity
Hardness
Cyanuric acid
Total dissolved solids
Metals
Phosphates

Bring the results back here and post them, or feel free to drop me a line at [e-mail] for more in depth help.

Green doesn't always mean algae, it probably is in this case, but it isn't a guarantee until we can get the readings on the pool. Adding algaecide, shocks, or any other chemicals to your pool at this stage is dangerous unless we know exactly what's causing the problem. Since we can't see the pool we need to have the readings to determine what's wrong. It really most likely is algae, but if it's copper (which will green the water) then doing any of the suggestions on the answers above will not solve the problem and will make things much worse!

Answer 2

I've answered this many, many times on here and hope it helps. Buy yourself a STRONG algaecide. Something stronger than what is sold at Walmart. I buy something called "Black Algaecide". Costs about $20 a quart. Make sure your filter is clean and working properly. Let the algaecide work overnight and everything should be settled in the bottom the next morning and it can be vacuumed up. You might have to physically wipe down the inside of the pool liner, but the algae should just brush off easy. This can then be vacuumed up. Add some clarifier and make sure your chlorine level is up and then happy swimming. I have had a crystal clear pool for 20 years now and have never had my water tested. One trick I have learned is this one statement. "If you can smell chlorine, you don't have enough in your pool." The strong smell of chlorine comes about when the chlorine levels are too low. Shock your pool and be sure all chlorine dispensers are full. Good luck and enjoy your pool

Answer 3

Green = algae.

You'll have to kill it first (algaecide), then most likely brush the pool down to get it off the sides while your filter is running. This will get the dead algae out of the water. The longer you run your filter, the sooner it will clear up.

Make sure your sand filter also has the right amount of sand, otherwise the algae particles will get flushed back into your water.

Answer 4

Grandma of 2 got it right!!!!! 10 points. Shock it after the algae is under control and run the filter longer!!!!

Answer 5

chemical's good to go and new filter... have you back washed the pump? or some nabor punk got you good with dye... you can always drain it and refill it to... and a good vaccuming wouldnt hurt and you could shock it as well.. you might want to try that and see what happens before you drain it. GOOD LUCK! hope it clears up and you can swim once again!

Answer 6

Go straight to http://appliancequickfix.com/ they have a great
page on pool water

Answer 7

Get some algae killer and pour it in.