My ph perfect indicates higher ph when the pump is on high starting the acid injection. When the pump slows down goes the ph ito the correct level. How do I stop this as it keeps over dosing acid.

The way that pH levels work is that a low number is bad, equal to 7 is neutral and more than 7 is good.

Is this a gunnite spa/pool? Normally a rough surface indicates water that is too acid (I.E. pH is way low) The water wants to be 7.4 pH (7.2 to 7.6) ... and it will get there one way or the other. If this is the case in your pool, the water has taken the lime from the gunnite to satisfy the high acid level.

Please check your pH and other factors. Make sure your water is properly balanced to stop the lime migration ... Also check the calcium level ... should be around 300 ppm though it is ok as low as 175 and as high as 1000.

Ger your calcium at 300 PPM even if you have a plastic pool. Then get the Alkalinity under control. You say it is off the chart ... but you Don't say if it is high off the chart of low off the chart. You will never get your pH proper until you get the alkalinity right. Sodium BiCarb to raise, muratic acid to lower. Goal is 100. When you get this number correct, you can adjust the pH. Don't try to correct this in a few hours ... go slow. Once the Alkalinity and pH is correct, introduce some dry chlorine ... shock the pool to about 20 ppm.

Is your salt around 3200 PPM? That is the goal for salt.

I hope this helps you with your pool.

Please clarify the part. Is this in reference the metal ring under the handle spring? this component is stainless, so if you are seeing some deterioration, this is primarily caused by water imbalance or higher than normal levels of acidic or oxidation products. Check your pH, Hardness and Cyanuric Acid levels. pH should be between 7.2.and 7.8, Hardness should be between 250-500 ppm, CYA should be no more than 80 ppm.

Best Answer - Chosen by Asker First of all, I would NOT recommend you use muriatic acid as some people mention, unless your pH or alkalinity are extremely high. This is highly dangerous acid, and if you put in too much, then good luck getting your pH back up again.

You need to test your water with test strips, a droplet test, or bring it into your local pool store and they can test it for you. They should tell you at least your alkalinity, pH, and chlorine levels.

You want to make sure your alkalinity is balanced BEFORE you balance your pH. Alkalinity and pH are related - if your alkalinity is not stable (stable generally means it's between 80 and 120 parts per million or ppm), then your pH will be jumping up and down.

Once your alkalinity is between 80 and 120 ppm, then work on balancing your pH. As long as your pH is between 7.2 and 7.8, it is within a good range. If your pH is 7.8 or higher, you can buy pH decreaser or pH minus at the pool store. On the back of the container, it will tell you how many grams to put in, according to how many litres in your pool. If your pH is extremely high, like at least 8.5-9, then you could consider putting in muriatic acid.

If your pH is too low, you can buy pH increaser or pH plus and put that in your pool. Again, the container will have helpful instructions on the back of it. pH increaser is basically sodium bicarbonate (aka baking soda) so if you're hard up for cash, I've heard of some people just dumping baking soda in their pool. However, pH increaser is definitely better quality so I would recommend that first.

It's really that simple. If pH is above 7.8, dump in some pH decreaser. If it's below 7.2, dump in some pH increaser. You can buy them for under 10 bucks each at many pool stores.

Heather,
leave it alone for a week
If it is still high then get a bottle of ph down.
Make sure you go slow otherwise you might find yourself needing to boost it again.

depending on the type/brand of salt cell/system you have I would recommend turning it to its lowest setting or off. Most salt cells don't measure chlorine level and will keep producing even if its crazy high. Most cells produce chlorine at about 8.0pH, so it will keep raising your pH as it generates. I would leave it off for a couple of days, get control of your pH and keep measuring your free chlorine level until it's acceptable. If you need to lower your chlorine level quickly you can use sodium thiosulfate to do so. You will have to add acid frequently to compensate for the salt system. Keep an eye on the TA as adding alot of acid will eventually lower your TA as well. Hope this helps.

You are going to need to buy chemicals anyway (acid for sure and probably algaecide) so find a good pool store tech and have them test your water and recommend the proper doses.

In summary though, you should not taste the salt in the pool and being able to means the salt content is to high. Chlorine generators will not work if the salt is to high and the fix is to drain water and dilute the remaining water until the salt content is no higher than max. No chlorine could explain the algae.

Generators also cause the pH to rise over time so you will need to keep acid on hand to counteract that.

Chlorine generator systems gradual increase the water's pH. You'll need to add acid to keep the pH down around 7.4. High pH can lead to cloudy water so get the pH balanced and you should be ok.