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.
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.