cloudy darkish water

[Pappy]

PoolDoc recommends running the filter 24/7 when trying to clear a pool. Green tinted water with 0 combined chlorine is usually an indication of metals in the water. Do you fill with a well or city water? Have you added any algaecide lately? Is there copper in your "Super Chlo"?

You might want to do a DE test on your filter
http://pool9.net/de-test/

Some of the Walmarts around here carry 10 lbs. HTH D.E. Filter Aid
http://www.walmart.com/ip/HTH-D.E-Fi...10-lb/20434370
The picture is wrong, the description is accurate.

Pappy

[fhorta]

I fill with well water. But pool only gets like this during this time of year. Other times water is clear. What do you mean by algaecide and what does that do? If metals is my problem, what can be done. I think one of the previous times I had this problem I was told by a leslies sales rep to throw in some liquid to clear metals but it didn't work. Is there a way to test for metals? The round chart that comes with the kit indicates that saturation is 0.1, which means no solids floating in water, correct?

[fhorta]

Ok, so I've come to tbe conclusion that the color of the water is not " a tint green" since that would mean that the water is clear but green. The water in my pool is not clear. The deepest you can see is probably 2 feet. Cant see the bottom at all. Hope this helps. Thanks.

[Watermom]

Cloudy and green is algae. You need to raise your chlorine up to shock level to kill the algae. Shock level is based on your CYA reading. Please see this chart for more about the relationship between CYA and chlorine:> http://pool9.net/cl-cya/

You want to keep your chlorine at that high level until:

1) You can go from sundown one evening to within an hour of sunrise the next morning without losing more than 1ppm of chlorine
AND
2) You have no more than 0.5ppm of CC

At that point, we generally recommend that you maintain the high chlorine for one more day for added insurance and then let it drift down but always keep it between the minimum and maximum needed levels per the chart above.

HOWEVER, since you fill from a well, it would probably be a good idea if you do a bucket test to check for metals before you shock the pool. Directions to do so are here:> http://www.poolforum.com/pf2/showthr...est-for-metals

Let us know the results of your bucket test and then we'll help you proceed. Keep your pump running 24/7 while you are trying to clear the pool and backwash your filter as needed.

[fhorta]

I just don't understand the growth of algae if chlorine always @ 6 or more and cya not over 50, with pump circulating 6 to 7 hours. Its like your getting algae no matter what. Thanks, ill do the bucket test.

[Watermom]

Have you kept your chlorine at shock level for a period of time until the algae is dead? If not, then that is why you continue to have algae. With a CYA of 50ppm, your shock level will be about 15ppm to kill it.

But, do the bucket test first before shocking the pool.

[fhorta]

Sorry, been out for a while. I have not done the bucket test yet, but this is whta has happenned. I thre in some potassium peroxymonosulfate (fresh n clear) 3 lbs and water cleared within a day and a night. Stayed clear for about 3 days and now greenish again. All other values are same, chlorine at 6ppm. Anyway, I am being told that problem is sand filter cus it doesn't filter small microns and that instead of using diatomaceuous earth I need to use cellulose fiber, a de altenative because it filters smaller microns...any comments on this??