How to Clean a Green Pool

We all know that swimming pools are a great way to stay cool and have fun during the summer. But we also know how much of a pain it can be to clean them. If your pool has turned green, then you may want to consider cleaning it. This blog post will go over how you can get rid of the green color and make your pool look like new again!

Table of Contents

Step 1: Remove the debris

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Pool maintenance is serious business. If you can’t see at least 6-8 inches below the water’s surface, call a professional because there might be an object down there that needs to be removed before it does any more damage. However, if your pool looks clean enough but slimy and greenish then roll up those sleeves and get busy!

To clean a green pool, start by skimming the surface with your telescopic pole. Switch to deep net and remove all big debris from the bottom of the pool until you don’t see any in there anymore – it may be hard if water is very cloudy but keep at it!

Step 2: Test the pH, CYA & free chlorine

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There are many different ways to test for pH levels of the water. A fancy test kit is more expensive but has better accuracy than using cheap strips. The ideal level should be below 7.2 or higher and needs to be adjusted either by adding muriatic acid (1 gallon at time) or prepared pH decreaser.

You can also get special kits that will measure CYA (cyanuric acid). You need CyA in your pool as it acts like sunscreen for chlorine; too little could mean algae growth due to UV exposure from sunlight damaging free chlorine needed.

It’s important to be aware of your CYA level in order to maintain a healthy pool. If you don’t know the specifics, it might surprise you how easy calculating is! You can use our PoolMath Calculator right here on this page for an instant answer. It also helps calculate other measurements like pH and salt too – just plug them into the appropriate fields along with CYA.

Once inputted, simply hit “Calculate”. The calculator will provide valuable information about what adjustments are necessary based off of its calculations (including whether or not water needs to be removed from/replaced). Make sure that chlorine levels are at least 1 ppm before using any sort of shocking agents; otherwise harmful bacteria may grow out quicker than usual!

Step 3: Shock the pool

green pool cleaning


Sounds like a cool way to have an awesome pool during the hot summer months. Chlorine is added in increasing amounts, but you can’t just pour it into your water and walk away because of pH adjustments needed beforehand. Let’s say you’ve adjusted your pH to 7.2 or below (as I’m sure most people do). Get 25 pounds worth of granular chlorine–it may seem like overkill at first glance, but when buying this bulk quantity from now on will save money since we’ll need regular doses for maintaining our pools all year round!

When you’re deciding how much chlorine to feed the pool, toss just enough granules out over the water. You can also use liquid chlorine if that’s easier for you. Walk around and pour or throw it in so each area gets some of your precious chemistry! Let this work its magic by running a filter on high until all traces are gone from sight.

Test the chlorine level every hour and when it is at or above shock level, this means that you are on the right track. Keep testing every few hours until your pool water is crystal clear. It may take a few days depending on how severe algal growth was before treatment.

Step 4: Brush, pump and filter the pool

Your Pool Went from Clean to Green Overnight. What Can You Do?


After adding chlorine to your pool, you will see a difference within 24 hours. Your water will no longer be green and cloudy due to the dead algae that has sunken to the bottom of your pool. To remove these particles from sticking on walls, ladders, or steps in order for them not get filtered out by your filter use a manual vacuum or run an automatic robotic one until all signs of cloudiness are gone from sight and there is only crystal clear water left behind! Keep running pumps while brushing off any stuck algae with brushes so it can continue through filtration before being removed permanently.

Step 5: Test for overnight chlorine loss

How to Clean a Green Pool


After you’ve thoroughly cleaned a pool and want to make sure there are no algae left, perform an overnight chlorine loss test (OCLT) which can be conducted any time of day. If the water is clear when it’s dark out, then check for free chlorine in the morning before sunlight reaches your pool again.

Chlorine levels in the pool should be monitored constantly for any changes. If you detect a loss of free chlorine, then it’s time to increase your shock level temporarily and repeat the OCLT before sunup again. Once there is no longer an issue with algae or when chlorine has only dropped 1 point from its original amount, return to normal target levels by decreasing how much bleach is added per day and taper off on adding liquid chlorinator as well if necessary.

Step 6: Ongoing maintenance

Swimming Pool & Algae


Now that you have eliminated the tiny green invaders from your pool, it is important to always keep up with all of its maintenance needs. Test out your water every day or at least once per week and make sure chlorine levels are high enough by stocking on chemicals needed for adjustments when necessary. A good chlorinating system will help maintain an adequate level of chlorine in the pool at all times so invest wisely!

Some people think of pool maintenance as a chore but it doesn’t have to be! All you need is the right tools and know how. With some regular brushing with your favorite brush, vacuuming weekly or when necessary, cleaning out filters on occasion, and buying an automatic cleaner if you’re feeling extra lazy then your backyard fun will last all year long without costing too much money either way.

Anyway, What causes a green pool?


Green pools are caused by algae, the most common type of which is green. Green alga spreads happen due to incorrect water balance or an abundance of phosphates (or carbon dioxides/nitrates), among other things like malfunctioning filtration and sanitation or being exposed to too much warmth or sunlight.

When this happens your pool starts getting cloudy with a color that looks more like grass than clear blue water; cleaning filters becomes necessary more frequently, as well as scrubbing the floor and walls so they don’t stain; all because you have some pesky little plants!

How algae grows


Algae can be a nuisance for those who enjoy spending their free time at the pool. Depending on temperature, they may grow in as little as hours or days since sunlight and circulation are not required to boost its growth. Most algae types thrive in chlorophyll which is used during photosynthesis process but it does require water temperatures below 51 degrees F before it will actually bloom.

Algae have a knack for assimilating all of the food and nutrients they need from their environment, even when barriers are erected. The nutrient-rich pool water is what algae thrives on with or without maintenance by humans because it serves as an abundant source of sunlight to provide energy in addition to the natural organic compounds produced via photosynthesis that serve as its primary sustenance.

In pools where chlorine levels aren’t maintained properly, algae grow exponentially due not only to these conditions but also thanks to their ability absorb chlorine which helps them thrive despite human efforts at prevention.

What’s so bad about algae?



Algae is a very versatile organism. While it’s not toxic to swimmers in and of itself, algae can cause other problems such as hosting bad bacteria like E-coli which could make you sick. Furthermore, the algae may reduce visibility for divers who are attempting to rescue someone or an animal; clog pores on pool filters rendering them useless; eat into surfaces with stains that nobody wants swimming around!

While not toxic to swimmer’s skin directly, Algae contains certain organisms such as the notorious Escherichia coli (E-Coli) virus –which causes stomach flu when ingested through water.

Algae is a microscopic plant that can easily hide out in crevices and other hard-to-reach places making it difficult to get rid of. To prevent algae from growing, you should be vigilant about preventing them but even if not successful they are very easy to remove with just some chlorine tablets or commercial algaecides when found since an ounce of prevention goes a long way towards keeping your pool free from unwanted guests.

Tips for maintaining your pool


If you want to maintain crystal clear pool water, the best thing is prevention. Keep your filter clean and covered when not in use as this prevents debris from getting into it and causing clogs. Regularly check for algae growth on surfaces like ladders or steps so that they can be cleaned before things get out of hand, too!

Here are a few things you can do:

  • Check filters and pumps frequently. Maintaining a clean pool can be tricky, since algae thrives in stagnant waters. Keep your filter and pump system clear of debris to keep the water running smoothly, avoiding organisms from accumulating.
  • Brush and vacuum weekly. Dead algae and bacteria can be a major problem for pools, so make sure to scrub the surface every week. It’s also important to vacuum the bottom of your pool weekly in order prevent these dead organisms from growing while they’re still submerged under water.
  • Maintain a healthy PH level. Keeping the pool at a healthy pH level prevents algae spores from flourishing and makes for more enjoyable swimming. It’s recommended to test your levels 2-3 times per week, as well as monitor how much liquid chlorine you need in order to maintain an optimal range of 7.4 – 7.6.
  • Use a pool cover. If you don’t want to go through the trouble of constantly sweeping out your pool, consider investing in a solar cover. They’ll keep debris and other organisms from blowing into the water while also keeping algae spores at bay thanks to their UV protection. Keeping an eye on things like leaves can make all the difference when it comes time for cleanup day or even if something nasty has already taken root before then.

How to Manage Your Pool on a Daily Basis

How to Keep Up With Maintaining your Pool Decking? 1


The best way to enjoy a crystal-clear pool is by spending just 10 minutes per day on it! A quick and easy task, this will make all the difference.

  1. Every morning, start by checking for signs of algae growth or cloudiness in the water. If you see any, it’s important to sweep away this growth and net out leaves and insects on a daily basis!
  2. Make sure the pool is clean and properly chlorinated to ensure that swimmers have a pleasant experience. Every morning you should check chlorine levels of the swimming pool before opening for public use. If there are any adjustments needed then do not hesitate – fix it!
  3. It’s not just a pool; it’s your home. Check the skimmer nets each morning on that place to ensure they’re squeaky clean, and free from any pesky insects or vegetation.
  4. You don’t need to wait for the pool water to get dirty from too many people jumping in before you backwash your sand filter. If it starts looking a little cloudy, try this trick and see how clear things are by tomorrow!
  5. Chemicals are designed to keep the pH of a pool at an optimal level, but you’ll want to make sure they’re working as intended. Checking and maintaining chemicals is essential for any swimming pool owner, because some will provide benefits that others won’t if not properly maintained.

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