What is going on with my pool???

Question

We bought a house and the pool water was green. We have been trying everything to get it clear. Right now it is a cloudy blue. We have shocked it and used a product called yellow out. We have all our levels right except the chlorine. It is suppose to be 2-4 and it is a .4. And that is with 2 tablets in our skimmer basket and we just shocked the pool less than 24 hours ago. All other levels are good. No green is left the water is blue but cloudy. Yes we have cleaned the filter (a sand filter). What could be messing up the chlorine level?? Is it safe to swim if you can't see the bottom? What should I do next??

Answer 1

Several possible causes, or a combination of them. Yellow out has an extremely high chlorine demand. After using it you should shock the pool- sometimes several days in a row- until this chlorine demand is satisfied. Could be you haven't gotten ahead of the yellow out yet. Another big consumer of chlorine is sunshine. Adding cyanuric acid helps to minimize chlorine loss due to sun. Your pool store can test this for you. The next big user of chlorine is warm water. Every time the water temperature rises 20 degrees it requires 50% more chlorine- just to stay "even". So there you are. Yellow out, sun, and warm water. All 3 working against you. Keep shocking until you can establish- and maintain- a chlorine level of 1.5 ppm. Now, you said you "cleaned" your sand filter? Did you backwash or did you change the sand? Be a good idea to change the sand if you haven't. It has been put through a lot of work and there isn't any telling how long the old sand has been in there. Give all this a go and I think you'll be delighted with the results.

Answer 2

What happened to the chlorine is that it got used up! It is perfectly normal for you to have little or no chlorine reading that soon after shocking your pool to clear up a problem in the pool. I would usually have advised you to double the shock dose the first time you shocked because it speeds up the process.

Just go ahead and shock your pool again with your regular shock dose (1lb per 10,000 gals of water). You will need to check your chlorine reading every day and make sure you keep it above 3.0, so if tomorrow it is low, shock again. Maintain a 3.0 or higher chlorine reading now till one week after you get crystal clear.

Keep your filter ON 24/hrs per day until you are clear also!

Answer 3

If this happened after a heavy rain, it is due to your ph being off. ?I have the same problem with my pool. What I have to do is get the really good 6 in 1 shock, double shock with clean filter running, in 24 hours double shock again. This should drop all particles to bottom for vacuum. Water should clear by now. If not, Wal-Mart carries a water clarifyer that is pretty good. The pool will be safe to use (my son swam in ours when it was in the green stage) I just made sure he showered and cleaned his ears after! I wouldn't do that alot though. Try that and then keep up with the filter and shock especially after rains!

Answer 4

Find a local pool store that offers testing at the store. You take in a sample, they test it and then write you a "prescription" for how to fix any problems. When you've tried everything else you can think of this is the best way to get the problem solved. Best wishes!

Answer 5

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Answer 6

The green is algae. With the heat wave the hole country is experiencing many areas that normally don't will have algae problems. Get a good Algaecide.

Answer 7

get liquid chlorine,
or get more tablets and really shake them and disintegrate them in the pool

Answer 8

maybe you should try cleaning pouring vinegar in it