There is one point where there seems to be conflicting views in the industry and that is the relationship between FCL and CA. How is everyone getting exact measurements? Your thoughts? PH 7.7 Muriatic acid, also known as hydrochloric acid, can kill any algae growth on your pool … TA 82 I don’t really want to shock the pool with liquid chlorine so how do I slowly bring it back? Cannot get the alkalinity or chlorine at the right levels. Sulfuric acid is used to raise the overall acidity of your pool water. Another great resources you might consider is the pool calculator. 5. Salt-3130 Pentair chlorinator runs 12 hours at 60%, Any suggestions are appreciated! Many customers come to us with the problem of their pool water pH constantly rising on them. We also always have high ph and alkalinity. We have newly built salt pool..7000 gallons. If you’ve heard the phrase ‘hard water’, it is simply referring to a high mineral content. My chlorine and free chlorine are low and so was the stabilizer. Most manufacturers will recommend periodic inspection and cleaning every 3 months. Do I just let aeration raise it? I cannot ever keep my chemical levels steady. I have a 4400 gallon salt water pool and I’m having problems with all of my levels. All levels tested are off. 3. Image Credit: Pixland/Pixland/Getty Images Muriatic acids can contain hydrochloric acid concentration levels between 28 and 35 percent. Cleaning salt cell with muriatic acid is one of the best ways to clean the minerals built up on the cell plates. Choosing a saltwater pool is not a low maintenance option. You have decided what size and where to put it and either... What salt system should I use for a 60,000 gallon pool? What model salt chlorine generator do you have installed on your pool? You’re nearly there. They will neutralize each other and lose their effectiveness. I know the industrial process & hardware but haven’t found much in the way of information on the hardware and software for monitoring the small scale processes involved in a residential pool. Calcium carbonate will react with the acid and foam; calcium silicate will not. It won’t add corrosive sulfates. ( my generator shows chlorine levels), There are electronic testers, but they still use test strips – Aqua Chek Trutest Digital Reader – NP207. When trying to balance a pool, is there a preferred order when trying to correct? It is important to note that cleaning the mineral deposit off the plates with a hard device is certainly NOT recommended due to the damage it can cause to the chlorinator plates. It has the same chemical composition as hydrochloric acid but contains extra compounds. This is also called aeration which will only effect the PH to go up but not your Total Alkalinity. Apart from this, sodium bisulfate or Dry acid is also a great alternative. Check your total alkalinity is correct. Most residential pool owners end up using Muriatic or Dry Acid. You might as well wear a respirator to BC you never know. We’ll take the water to get tested and they’ll say our chlorine is high, like 7. If your pool uses a cartridge filter, you may already have muriatic acid on hand. You should test and monitor your available free chlorine levels on a weekly basis. In fact, it is the same naturally produced bodily acid that works in the stomach during digestion. The pool has a waterfall from the spa. Cleaning the salt cell is done by soaking the cell in a mixture of muriatic acid and water. When comparing muriatic acid vs. sulfuric acid, both can be used to get the desired results. I drained it and started over and it still creeps back to the same problem. Then, once they test their levels, their salt PPM is extremely high. How do I get this down? Unfortunately, this is not the case. I’ve cleaned it but not with muriatic acid (still blinking). For cyanuric acid, the ideal level for outdoor pools is 70-80 ppm, while for covered pools it is 20-40 ppm. The excess chlorine will eventually get used up and you’ll see the FC drop.When it gets back to a desirable level then you can go back up to 50 percent. Muriatic acid, also known as hydrochloric acid, is a corrosive chemical with a variety of household uses. Dry Acid for POOLS Gallons in Pool pH 120,000 60,000 30,000 15,000 10,000 7.6-7.8 11.2 lbs 5.6 lbs 2.8 lbs 1.4 lbs 15 oz It holds 14,000 gallons. While this substance is perfect for the maintenance of home pools, it also has many industrial uses that you should be aware of. If you want to learn about water chemistry, read this guide: Water Chemistry For Saltwater Pools. The start up pool guy raised the cyanuric acid level to 100 ppm. And with all the positives that users get to look forward to, it is not so hard to see why. Do you have a start up for plaster or is it the same procedure as the pebble tel start up ? Bleed and feed? CH 235 Muriatic acid is a great acid for balancing the pH levels in your swimming pool, but you should always make sure to handle the chemical correctly and keep it stored where animals and children cannot get into it. It can with the pump salt generator and filter. Most bottles of muriatic acid will let you know how much you need to use for different pool capacities. For salt water pools the consensus seems to be about keeping the CA between 60 – 80ppm ( let’s say 70). While there was no barium detected in the potable water, barium was detected in the outdoor pool. Muriatic Acid. While the barium levels were well within the federal drinking water standards, we were surprised at this discovery. To help point you in the right direction, what specific processes are you interested in measuring? As with most good things in life, the cell plates require periodic maintenance to prolong their life. The ideal pH level for your pool is 7.2-7.8. Salt water chlorinators cost several hundred to a couple thousand dollars just to get up and running. What the reading … The most commonly used of these are hydrochloric acid and its close chemical partner, muriatic acid (please see our related article on Cleaning a Salt Water Chlorinator Cell with Muriatic Acid for more information about muriatic aid). So what you will find is that as you have to add Muriatic acid to lower your PH it will also lower your Total Alkalinity and you will have to add Bi Carb. It is a very versatile product, and highly dangerous, caustic and bad for your lungs if you inhale the fumes, so care should be taken in transporting, handling and using muriatic acid. While there was no barium detected in the potable water, barium was detected in the outdoor pool. Salt pools run at a higher pH, so battling that is going to be a constant. Test strips can be fouled, and digital home test kits can be a great tool but finicky. Expensive salt cells need frequent cleaning I’d give it another 24 hours if I was in your situation; a lot can change in that time. You can use muriatic acid to give you several different results concerning total alkalinity and pH levels. Muriatic acid is also less reactive with water. There isn’t much of a tip for this, you would need to add enough pH Down or soda ash to bring it into check. PH was 8, alkalinity was 120, stabilizer was 60. This digital tester, is it one you purchased or did you get it tested from a local pool store? Is there any information or data to suggest that a by-product of a salt water chlorination is barium? Model EXO20110-1. Pools with a pH of less than 7 are considered acidic. Additional Considerations to Make. I also have many questions about which chemicals are best to use. Regular doses of muriatic acid have to be added in order to clean your saltwater pools salt cells. Hopefully, it was at least 30 days after the replaster. Get used to it as this is how salt water systems work when you want to make your own chlorine. You can buy electronic handheld salt testers, or you can take a sample to your local pool store for free tests. Over time, these minerals can build up on the cell plates, mostly calcium, and will negatively affect the overall performance of the chlorinator. I’m not sure what you are washing it with but there is a reason the standard method uses MA, it works. If you’ve been using muriatic acid to clean your filter, you can use the same stuff to lower your pool… Also, how old is the cell? Once dropped I add PH+ to correct the levels and add some chloride tablets (4/5 tablets). However, you should still mix by adding acid to water and not the other way round. We have a T-15 T cell and the light is blinking to indicate a need to clean it. However, DO NOT add any more than indicated in any single application. Cyanuric acid is a mild acid that helps prevent the breakdown of chlorine due to the sun’s ultraviolet rays. While muriatic acid is not a recommended solution for the daily cleaning of metals, it can be used to treat stains on metal. The chlorinator should be able to handle anything you throw at it. I had done an acid demand test and added the amount required. It is safe to swim after adding hydrochloric acid to swimming pool. Spray a 1:16 acid-to-water diluted solution on the drained surface of the pool, let it sit for 10 to 15 minutes. Your Free Chlorine (FC) reading should be between 1 – 3 ppm. The ppm for indoor pools should be 0, as there is no need to add stabilizer to a pool not affected by the sun. I don’t know the size of your pool or the generator. Lowering Total Alkalinity without Lowering the pH We recently had a comprehensive water analysis conducted on both our home drinking water supply and our salt water pool. I do have a waterfall. 2. These are my numbers: Well my stabilizer is in range (50) just today, and my TA is now 120. If you haven’t already gotten a pool store water test, that should be your next step. This can explain the potential for its use in swimming pools. If you use too much muriatic acid, however, the levels can dip dangerously low, which can cause rashes and eye irritation for swimmers and damage metal parts of your pool equipment. If the pH is only down by a few points, you can add soda ash to neutralize the acidity, but then you end up with other things like total alkalinity and hardness being out of balance. The only drawback is it will increase the total Dissolved Solids (TDS) a bit faster than using muriatic acid. If there aren’t any, reinstall the unit and start the system. There is enough salt in the water. Why you should not use muriatic acid to lower the pH of your pool. However, DO NOT add any more than indicated in any single application. If you are replastering your pool, you need to hold off converting to saltwater for 60-90 days. I noticed that my niece’s hair was super tangled after swimming and that’s why I tested the water. I’m a retired engineer (EE) with a fair amount of process control experience. Any store that sells supplies for you… As a general rule, we're going to use 15 oz. The shock kills anything that may be lingering in your water while allowing the generator a chance to build chlorine levels. With salt cells in particular, you should clean at least once a season or as recommended by the manufacturer. It is important to remember that you need to carry out maintenance like this on a regular basis. Also, I am very skeptical of “calcium down” chemical additives.

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