Pool Water Has Strong Odor To Vinyl..Milky Water

by Hernan Sierra
(Northvale, NJ)

Pool liner is old and appears that the vinyl is sheding a milky color. Filtering and floculent agents don't seem to help.

My pool is well banced and sanitized.

My quetion is:

It is safe to swim under these conditions?



Thank you for your question Hernan

As vinyl pool liners get old they may tend to leak, tear easy, wrinkle and crack. In your question it says that the vinyl pool liner is old. If it's more than 7 - 10 years old, it might be time to replace it with a new one.

Concerning your milky cloudy pool water, first I would encourage you to get a Taylor Reagent FAS-DPD K-2006 pool water test kit. It's the best on the market and the one I use.

Water Testing Kit..FAQ..Chemistry Testing..Procedures..Balance..Swimming..

If your pool water is well balanced and everything is correct, but your liner is shedding a milky color, it's probably time to get a new one.

Many times with milky pool water the cyanuric (CYA) acid is too low. This is the stabilizer for your chlorine. Without CYA, your outdoor swimming pool may lose up to 40 - 50% of the pool chlorine within a few hours or days. This link will help you understand about the CYA:

Chlorine Tablets..Swimming Pool Chlorine..Chemistry..3..1..Inch

The FAS-DPD has a great test for the CYA and it's very easy to do. You'll want to keep this reading between 20ppm - 40ppm.

Keep filtering, and I'm not aware of any health concerns you should have about having an older liner as long as the pool chlorine level is kept between 1.5ppm - 3.5ppm to kill any organic matter.

Hope this helps and have a great Summer


Donation..My Pool Guy..

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Swimming Pool pH Level Fine..Water Has A Cloudy & Milky Look

by Pat
(Ontario, Canada)

I added pH up to my pool to raise the swimming pool pH level. The pH level is now ideal and so is the pool chlorine, but now my pool has a cloudy milky look to it. It has been this way for days now.

How do I get my clear water back?

Thanks for your question Pat

There actually could be hundreds of reasons why you could have cloudy pool water. Here's a few of them:

Cloudy Pool Water In Swimming Pools

If all the chemicals levels check out, the filtration system is running and in good order, and there's no outside influences such as dirt, pollen, windstorms, etc...I would then check the cyanuric acid (CYA) level. If this is a bit high, above 80ppm - 90ppm, your best bet would be to drain 1/3 - 1/2 of the pool water, do a re-fill, then balance out the chemicals again.

Adjust Your Swimming Pool Chlorine

CYA is the stabilizer for your chlorine and should ready between 30ppm - 50ppm.

High doses of pool chemicals such as calcium hypochlorite (unstabilized or shock chlorine) can cause a high salt level in the pool resulting in cloudy, milky pool water.

If you have cloudy pool water, the first step is to determine the cause before attempting to solve the problem. Don't throw a bunch of clarifiers into the pool. Find the problem and treat it so either it won't happen again, or if it does, you'll know what to do and spend alot less money and save alot of time and frustration.

Hope this helps and have a great Summer


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