最后更新日期：2025年6月1日

为什么游泳池在氯化后会变色

Swimming pool fill water sourced from the Well is always full of heavy metals such as Copper, Iron, Silver, Magnesium, or Manganese. These metals can also be found in some untreated tap water, and to avoid metal stains, it’s advisable to test your fill water for heavy metals and use a 花园软管预过滤器 如果某些重金属（如铜和铁）检测呈阳性，则在将其用于游泳池或水疗中心之前。 

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当氯氧化重金属时，会在游泳池中产生金属污渍。如果您的泳池水颜色变成绿色、棕色或黑色，尤其是在添加氯或pH值较高时，这很可能是金属污渍。 

It’s caused by heavy metals in pool water, commonly Copper, Iron, and Silver. The good news is that you can get rid of metal stains and prevent metal staining in the future.

泳池水中最常见的金属是铜和铁。不过，有些泳池也可能含有银、镁和锰，尤其是在使用井水的情况下。

铜金属会被氯或高 PH 值氧化，产生浅绿色污渍；银被氧化，产生黑色污渍；铁被氧化，产生棕色或生锈的污渍；锰和镁被氧化，产生紫色污渍，可在墙壁、地板、衬里、玻璃纤维，有时在泳池设备上看到。

相关文章：水疗和热水浴缸维护：热水浴缸化学品、清洁热水浴缸和水疗和过滤器、定制热水浴缸和水疗盖等。

不过，最好确保您的泳池没有受到金属污渍的影响。藻类、树叶和其他有机物中的有机污渍可能会导致与金属污渍相似的颜色。本文主要分为三个部分： 

1. 测试以确定污渍的原因（有机或无机污渍）
2. 如何清除金属污渍和
3. 预防未来金属污渍的方法 

1.) 它是有机污渍还是金属污渍？

If not careful, you might mistake Copper and Silver stains for green and black algae, respectively. Before starting treatment for metal stains, you need to be sure that you are dealing with metal stains (inorganic stains) caused by heavy metals such as Iron, Copper, and Silver or organic stains caused by algae, plants, leaves, and more.

1. 使用抗坏血酸测试金属污渍

Doing this won’t take you 10 minutes. To determine whether it’s a metal or organic stain and properly treat it, use 抗坏血酸粉 （或维生素 C 片）来测试污渍。

Rub ascorbic acid in the affected area; if the stains come out or loosen after applying ascorbic acid, you are dealing with metal stains, not stains caused by algae or other organic matter.

2. 使用氯片（三氯）测试有机污渍

If you can’t find ascorbic acid to do the test, you can use a 氯片 (trichlor) to determine if it’s an organic stain. Place a chlorine tablet on the stain for a few minutes; if the stain lightens and clears, you are dealing with an organic stain, which you can remove by raising the free chlorine (FC) level to a given shock level, which can range from 10ppm going upwards. 

3. 进行隔夜氯损失测试 (OCLT)。

Another test you can take to determine what you are dealing with is the Overnight Chlorine Loss Test(OCLT). The copper stain is light green but might look like green algae. To do the test, 给泳池加氯 as required in the evening when the sun is gone and take the Free Chlorine(FC) reading both in the evening of chlorination and the following morning. If you lose 0-1ppm of FC, it’s not an organic stain but a metal stain; algae eat up lots of chlorine, and you will lose above 1ppm of FC overnight.

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2.) 如何通过六个步骤清除游泳池中的金属污渍

When you are finally sure it’s metal staining, you can use ascorbic acid to remove the metal stains from your pool. Follow the guide below to clear metal stains using ascorbic acid. 

步骤 1：将 FC 水平降低至 0ppm

将氯浓度降至0ppm。降低氯浓度至关重要，这样不仅可以去除污渍，还能避免留下更多金属污渍。此外，氯会消耗掉大部分抗坏血酸，而抗坏血酸应该用于清除金属污渍。

要降低 FC 级别，请使用 氯中和 代理人 or drain and refill a portion of your pool water, or wait until FC gets 0 ppm naturally. However, waiting for the FC level to drop by itself will take time, and you will have to add 聚季铵盐60除藻剂 （非金属除藻剂）可在 FC 水平为 0 ppm 时防止藻类滋生。 

步骤2：将pH值降低至7.2

Ascorbic acid will be ineffective in pH above 7.2, so reducing your pH to 7.2 if higher than that is essential. High pH also causes metal stains, and you don’t want more stains while clearing the stains.

您可以使用 pH 值减去 或者 盐酸 来降低 pH 值，但请记住，盐酸也会降低碱度，因此完成后您必须平衡水质。 

步骤 3：将过滤器置于循环状态 

You need to put your filter on circulation to speed up the process by allowing water to move around the pool. This will also enable ascorbic acid to effectively clear the stains without letting some out of the pool through the filter.  

步骤4：添加适量的抗坏血酸 

Add 1 POUND of Ascorbic acid to every 10,000 GALLONS pool; if you have a 40k gallons pool, you will add 4 lbs or pounds to your pool, targeting most stains-affected areas.

将适量的抗坏血酸倒入杯子中，滴在泳池周围。让抗坏血酸循环30分钟，观察污渍慢慢消失，直到不再有污渍。 

如果污渍没有全部去除，请在仍然可以看到污渍痕迹的地方添加更多的抗坏血酸，并重复此操作，直到看不到污渍为止。 

步骤5：添加金属螯合剂  

When your pool is free of metal stains, remember that your water is still full of heavy metal compounds and will stain again when you add chlorine.

为了避免更多的金属污渍，你需要添加 金属螯合剂. This chemical holds heavy metals like Iron and Copper together in a solution so that they don’t get oxidized by chlorine to produce metal stains.

步骤 6：将过滤器置于过滤状态并平衡水化学

清除所有污渍并添加金属螯合剂后，将过滤器安装到过滤器上，静置泳池24小时后再添加任何物质。24小时后，您就可以开始平衡化学物质了。

平衡pH值和TA水平: Ascorbic acid, though not a strong acid, will lower your pH and total alkalinity (TA) slightly lower than you left them; however, the difference might be minimal. Test your pH and TA and make adjustments as appropriate.

如果 TA 已平衡但仍需要提高 pH 值，请使用 硼酸盐 to raise your pH without raising the TA level further, but don’t let pH go higher than 7.2 to keep metal stains in control. 

提高游离氯水平: After getting your pH and TA properly balanced, you can raise your FC level. I prefer you use 液氯 that will not increase your pH, Calcium, and Cyanuric acid levels caused by powder and tablet chlorine.

You need to add chlorine slowly while watching for traces of metal stains. First, raise your FC to 2 ppm. If you see no stains in 15 minutes, raise your free chlorine to the recommended level for your Cyanuric acid level in the water. Here is more on 如何对游泳池进行冲击, whether saltwater or non-saltwater. 

However, if you see stains while adding chlorine, stop adding more chlorine and make sure your pH is 7.2 before adding more metal sequestering agents to lift the stains. Don’t shock your pool for two weeks; leave ascorbic acid and metal sequestering agent to work fully.

After two weeks, your chlorine should hold easily since ascorbic acid has been used up without causing more stains. Remember to use metal sequestering agent treatment frequently as the manufacturer directs, usually doses of one week to one month to control metal stains.

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3.) Three Ways to Remove Heavy Metals in Your Pool Water

Eradicating metals out of your pool fill water or inside your pool is the easiest and most economical way to prevent metal staining.

 为了确保您的泳池始终不含重金属，请使用 Lamotte ColorQ Pro 11，一种数字泳池水质测试套件，可读取所有泳池化学物质和最常见的重金属，包括铜和铁。 

 以下是在进入泳池之前去除补水内的重金属或通过泳池过滤器去除金属的四种方法和产品：

        1. 井水进入泳池前需过滤

这看起来工作量很大，成本也很高，但这是控制泳池金属污渍最简单、最经济的方法。为了在进入泳池系统之前过滤掉池水中的金属化合物，请使用 Glacier Fresh 花园软管末端预过滤器 或者  Pleatco 一次性预过滤器。这些预过滤器适合任何标准花园软管，一次性过滤水容量可达 8,000 至 40,000 加仑。

相关产品： Beatbot AquaSense Cordless Robotic Pool Vacuum Cleaner for above-ground and inground pools up to 2,260 sq. ft.

       2. 在泳池中添加金属去除剂

您可以通过添加以下方法去除泳池或水疗中心内的重金属 泳池和水疗中心污渍和水垢控制 或者  职业战队金属魔法 到你的水中。

它们可以通过过滤器去除所有金属，包括铜、铁、银和锰。如果您需要以最快的方式去除泳池中的金属并避免金属污渍，这些是最佳选择。 

       3. 使用 CuLator Ultra PowerPak 4.0

 就像花园软管预过滤器一样， CuLator Ultra PowerPak 其工作原理是在水进入泳池之前去除水中的金属。

CuLator can be used on the skimmer or pump basket and has an added advantage since it can remove 4.0 ppm of total dissolved metals like copper, iron, zinc, and manganese in 20,000 gallons of water.

您可以在撇渣器和泵篮中放入更多金属来增强其过滤能力。

EasyTest 9 路泳池、热水浴缸和水疗测试条