Confused About Pool Chemicals
I have an 18 foot new above ground pool and have followed the advise of a very reputable pool supplier. I am having two problems .
1. Sand coming back into pool even after following their advise, it continues.
pH and chlorine where very high and the pool is very milky and followed there suggestions.
So, I shocked the pool with liquid chlorine, waited 24 hours, then added a chemical to help the chlorine. Then pH is too high. Added pH down, however, still the water is milky after 3 days of filtering. Water tests showed everything ok so they said to add a clarifier. Now it is still cloudy and very frustrating
Any help understanding this would be appreciated.
Thanks for the question Tom
Understanding this is simple, but I'm walking a fine line here. I get these questions alot. They start out with "The guy at the pool store said such and such. I did it and now it's worse".
Check out these posts from very frustrated pool owners:
Do You Really Need All These Chemicals For A Pool Or Are They Just Trying To Get Your Money?
High Phosphates Over 1000 & Cloudy Water
First, I'd like to have your complete chemical readings: Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper). It makes troubleshooting much easier and the process of clearing up your pool will go much faster. You can get this done at your local pool store. They should do it for free. I'd encourage you to get a Taylor FAS-DPD K-2006 pool test kit.
Pool Water Testing
Without these numbers I'm just guessing at what the problem is. I need to know what their advice was concerning the sand going back into the pool. Here are some posts to look over about this very issue:
Replaced Lateral But Still Sand In Pool
How Do I Stop Sand Going Back Into The Pool..Pool Keeps Getting Dirty..
Swimming Pool Sand Filter..Pool Seems To Be Manufacturing Small Debris
The question says the pH and chlorine were very high after talking to them. What were the readings? Then you shocked, I assume per their instructions, and added a chemical to "help" the chlorine. What was that chemical? The pH was still too high. What was it at that time?
Then the question says the water test were "ok", so why did they tell you to add a clarifier?
Since 1999, when I started my pool route in Arizona, and being the YMCA pool operator since 2008, I have found that many (not all) of these guys who work in pool stores are there to sell chemicals. They've never actually cleared up a pool...ever. This is what I meant when I said it's easy to understand why you're having these problems.
Get me the readings and answer the few questions I left for you and we'll get your pool back in shape.
To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Chemical Questions" category.
Swimming Pool Questions and Answers
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Hope this helps and have a great Summer.