chlorine free pool

All Pool Chlorine is not the same.

There are many styles of chlorine used in swimming pools, although they all belong to the same class of product, they do their jobs differently.

  1. Pool Liquid Chlorine and Laundry Bleach are different. Pool liquid chlorine (10-12.5%) is fresher and stronger than laundry bleach (3-4%). This difference may not seem like much, but pool liquid chlorine is approximately 4x stronger than laundry bleach, thus requiring much more laundry bleach to do the same thing.
  2. Different chlorines have different strengths and a wide variance of pH levels. Liquid Chlorine has a pH close to 13 while chlorine tablets have a pH close to 3. Other “shocks” vary throughout that range. This means a lot due to pH levels having an affect on the effectiveness of the chlorine within your pool water.
  3. Shock bags and chlorine tablets do different things. Chlorine tablets are used to create a low level of constant chlorine in the water (sanitization) while bags of shock or liquid chlorine are meant to create a temporary high level of chlorine in a pool (oxidization).
  4. All chlorine can be ‘stabilized’. Stabilizer/Conditioner are nomenclature for cyanuric acid (abbreviated CYA). CYA can get too high (>80ppm) in pool water which decreases chlorine effectiveness, the higher the CYA level the less effective chlorine becomes. Chlorine tablets have CYA built into them which helps with low level chlorine sanitization. Sodium dichlor, sometimes used as a ‘shock’ product also has cyanuric acid built in. Too much use of either of these products may cause an increased CYA level. Calcium Hypochlorite, Lithium Hypochlorite, and Sodium Hypochlorite (liquid chlorine) have no CYA in them at all, thus allowing them to create a temporary high chlorine (>10ppm) for traditional oxidizing without leaving behind any cyanuric acid.
  5.  Liquid Chlorine (sodium hypochlorite) is generated in a salt pool, this is part of the reason why pH levels in salt pools tend to fluctuate on the high side and why salt pool chlorine generator manufacturers tend to suggest having a cyanuric acid level of 70-80ppm.
salt water pool

6 Misconceptions of Salt Pools

Gone are the days of all pools being maintained with chlorine. The pool market of the 21st century offers consumers numerous options on how they wish to maintain their pools.  Salt pools (or saltwater pools) are becoming increasingly popular in the pool community.  Here are a few misconceptions that many people have about salt pools:

  1. Salt pools do not use chlorine. Salt Pools use a cell (Electrolytic Chlorine Generator or ECG) that generates chlorine from salt. A salt pool is a chlorine pool, you just don’t have to dose the pool with chlorine as you do with traditional chlorine usage.
  2. Salt Pools do not need maintenance. When chlorine is generated in a salt pool so is scale and an increased pH. Scale causes the ECG cell to be less effective. Higher pH causes the chlorine to be less effective.
  3. Salt pools do not need water balancing. ECG’s only make chlorine, they do nothing for the other balance requirements (calcium hardness, cyanuric acid/stabilizer level, total alkalinity). Nor do they provide an algaecide or scale inhibitor.
  4. Salt Pools provide a ‘Set it and Forget it’ pool. Even though ECG’s create chlorine, they do it only at a steady pace, when there is rain or environmental issues (pollution, wind, pollen season, etc) or when there is a high bather load (more swimmers than normal), salt pools need to be boosted or shocked to maintain sanitized water, even needing the addition of store bought chlorine, depending on the need.
  5. Salt Pools are foolproof. Salt can be disruptive to the pool area, think of how salt treats your car during the winter. Pools with natural stone accompaniments are not recommended to use salt because the salt remaining from evaporated water from splash out can damage the service of the stone and make it not look as nice as you’d like it.
  6. All salt is not the same. Pools have their own needs and environment. Salt used for water softeners or ice melt is not conducive to balanced water and can actually cause chlorine demand within the pool which means that it can take more chlorine generation to achieve proper sanitization levels. Some salt styles also use iron based anti caking agents which, when put into a chlorine environment can cause staining of the pool surface and unnatural coloring of the water.
Green Swimming Pool

How to Fix a Green Pool

If the pool is free of algae, the green tint indicates that something is slightly out of balance or there is a presence of a high level of phosphates that can also lead to redundant algae problems. Typically the bleaching effect of chlorine compensates for an out of balance condition, keeping water blue in spite of possible problems. Since one of the benefits of E-Z POOL® is that it does not contain bleach, the following is a list of things to check when troubleshooting a pool with green tint:

1. Check the filter. A clean filter is always the first step in correcting a problem with E-Z POOL®.

2. Test sanitizer level. If the pool is lacking sanitizer, there may be a tendency for the water to get a green hue. If the sanitizer is too low, the pool may take on a flat look and then turn a light green tint. When experiencing a green tint from low sanitizer level, try increasing the sanitizer level to at least 3.0 ppm with the addition of a dichlor shock.

3. Test for phosphates. A high phosphate level is often the cause of stubborn green tint in E-Z POOL® water. Use Revive!® to resolve this problem quickly and effectively.

4. The level of calcium contributes to the “body” of the water. If the pool water lacks body, it may not effectively reflect the UV rays of sunlight to produce the blue tint most commonly associated with swimming pools. Here again, if the green tint is due to chemical imbalance and sufficient oxidizer is present, the calcium level may be too low.

Calcium level should be adjusted to 350 ppm. Always adjust balance before dosing with E-Z POOL® and allow water to reach new calcium balance prior to E-Z POOL® application.

5. Test copper level. Excessive copper levels may contribute to a green hue or tint. Check the copper level and if it exceeds 0.8 ppm, treat with Revive! to reduce.

6. Test pH and total alkalinity. If pH is high or low relative to calcium, and total alkalinity is too low relative to pH and calcium, this could result in a green tint. Adjust to recommended levels.

dirty swimming pool

How to Fix Brown Staining in Your Pool

The brown staining in your pool is caused by oxidized iron, which is probably getting in your pool from the well. The oxidizer in E- Z POOL shocks out more contaminants than regular chlorine shock. Sometimes, especially pools filled with well water, this can cause an issue that was previously unknown while on chlorine because it is not as versatile as the E-Z POOL®. In most cases, the problem can be fixed rather easily.

When you used ascorbic acid before, it was the right thing to do, unfortunately you weren’t told that the job was only half done. Ascorbic acid removes the stain rather easily BUT once the stain is removed, the molecules that formed the stain are still in the pool water. They have just been dissolved. Unfortunately sand filters only filter out particles that are 20-25 microns and larger, oxidized iron is in the 2-4 micron range. So, your filtration system needs help removing the particles that caused the stain out of the pool water. The fastest and easiest way to do this would be to:

1. Treat your pool with ascorbic acid, you shouldn’t need more than a pound. It should work within an hour or two. Once it has been circulated throughout the system.

2. Once the brown stain has been lifted, turn off the pool pump.

3. Spray a 16oz bottle of Revive (removes the iron particles by dropping them out of solution and in to a sediment on the bottom of the pool so you can vacuum it to waste, removing it for good) over the top of the pool.

4. Leave the pool off for at least 24 hours.

5. Vacuum the debris out of the bottom of the pool while your sand filter valve is on waste.

6. Follow the weekly directions for the E-Z POOL®  that your local store has given you.

You should also have a bottle of Revive! at the house for whenever you fill up your pool due to evaporation or splash out. Simply attach the Revive to the end of your fill hose and spray the product over the top of your pool water, covering the pool twice, Revive! will capture the particles from your well water that shouldn’t be in your pool water and send them to your filter for you so that you do not have to go through this huge procedure over and over.

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  • “Just wanted to thank you for a great product. After four weeks of trying several different products and also adding way to much chlorine, we can finally see the bottom of our pool. Added Revive! at 6PM last night, by the time we went to bed, we could notice a difference and when I got up this morning everything had settled to the bottom. Used the vacuum for about an hour this morning and were swimming this afternoon. Will probably have to vacuum once more, but so glad this product was recommended to us.”

    – Donna, Ohio
  • “Easy, simple, worry free…these all describe how my pool maintenance has been since I started using EZ POOL! I have a big pool and it is not a big job with E-Z POOL, just once a week. Once the pool is open and clear in the spring, I just have Caryl’s experts test my pool sample once a week to make sure the balancing chemicals and pH are good. Algaecides are not needed. Brush, brush, brush, as Caryl recommends and my pool is beautiful all summer! Also, it is gentle to the skin and does not effect your hair color. I highly recommend E-Z POOL!”

    – Trish, Greensboro, NC
  • “I have used the EZ Spa now for four years. It is the best spa treatment I have ever used. It makes the water feel really soft and refreshing. I use it once a week and forget it. My spa stays crystal clear. I love this stuff. Not to mention when you use EZ Spa you don’t have to buy so many other chemicals. I also noticed that EZ Spa is extremely gentle on the skin. I can’t say enough about how good this stuff is. Try it, you’ll love it!”

    – Terri G., NJ
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