We’re in extraordinary times, and that way answering extraordinary questions. One question I’d open minded not meant to listen is, “is it it s okay to usage bleach come clean mine pool?” But since the start of the year, I’ve viewed folks asking around bleach in pool owner groups on Facebook, ~ above our social media channels, ~ above blogs and YouTube comments, in emails, and even in a couple of panicked phone calls here and there.

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Why would certainly you desire to use bleach rather of pool chlorine?

If you’ve checked out the news or tried to buy swimming pool chlorine recently, you’ve probably noticed the there’s a chlorine shortage walk on.

If girlfriend can find pool-grade chlorine, it’s probably a fair bit much more expensive 보다 you remember. If girlfriend can’t discover any, you’ll still need some way to keep your pool clean.

Let’s take it a look in ~ the pros and cons of using bleach instead of chlorine in this article... But first, let’s start by experimenting what bleach actually is and also how it different from the pool-grade chlorine you’re supplied to.

Bleach vs. Pool chlorine: the basics

First, let’s clean something up: bleach is chlorine. Pool-grade chlorine and also a jug of Clorox are essentially the same thing, chemically. However, they’re not made with the exact same concentrations the chlorine.


Pool-grade chlorine, i m sorry you have the right to usually to buy in tablets, granules, or as a liquid, has tendency to be easily accessible in formulations of in between 65% and almost 100% chlorine. Pure chlorine is well-known as hypochlorous acid.

Most well-known pool-grade chlorine is formulated as calcium hypochlorite in granule or tablet computer form, which often tends to be on the lower end of the concentration range. Countless tablet-based treatments are formulated as trichloro-s-triazinetrione, or tri-chlor. A tri-chlor tablet can deliver virtually 100% pure chlorine when liquified in swimming pool water.

A jug the bleach, choose Clorox, is largely water. Bleach contains around 5% to 6% sodium hypochlorite, which means roughly 95% of her jug of bleach won’t execute anything beneficial to clean her pool. Part bleach formulations may encompass colorings and fragrances, which deserve to negatively influence the high quality of your swimming pool water.

Liquid chlorine therapies are likewise mostly water-based, yet should commonly have at the very least 10% sodium hypochlorite in a solution without unwanted color or fragrance additives.

Can you usage bleach rather of chlorine?

Short answer: yes.

Longer answer: it relies on the formulation.

The label on every bleach bottle should tell friend the proportion of sodium hypochlorite (and obtainable chlorine) in the bottle to everything else. A higher percentage is normally better, together you’ll must use less bleach to treat your pool.


You’ll additionally want a formulation through no fragrances or other chemicals. You shouldn’t be dyeing your pool water or making the smell favor a summer breeze.

Many virtual retailers encompass label info for chemical assets like bleach, so girlfriend can examine both the chlorine concentration and also for the existence of any kind of other chemicals and/or additives before buying.

If you want to store extra bleach about for future treatments, make sure you save it in a cool, dry ar indoors. Don’t leave your bleach jugs outside!

How to use bleach to sanitize and also disinfect your pool

Bleach, like any kind of other sort of swimming pool treatment, is best used in specific concentrations -- the is, you’ll want to have the ability to detect a particular amount that chlorine in your pool water. Also little, and you won’t effectively sanitize your swimming pool water and surfaces. As well much, and your swimming pool water might come to be too harsh come use.

The ideal range for included chlorine is between one and three components per million -- that’s between 1-3 ppm in more scientific parlance. If you aim because that 2 ppm, friend should provide yourself sufficient wiggle room in either direction.

Clorox itself recommends using in between 100 and 200 ounces of regular-strength bleach per 10,000 gallons of pool water -- one gallon is 128 ounces, and also many party of bleach are easily accessible in one-gallon or half-gallon sizes.


Pool experts tend come recommend an ext conservative amounts of bleach. I’ve seen recommendations ranging from one 4 minutes 1 of a gallon per 10,000 gallons of swimming pool water, which supposedly raises chlorine level to 2.5 ppm, come one gallon per 30,000 gallons of swimming pool water, for about 2 ppm of chlorine.

Most references assume you’ll be using conventional bleach, which is about 5% to 6% chlorine. If you’re making use of “concentrated” or “extra-strength” bleach, or any type of other formulation over the common 5% come 6% ratio, you’ll need to use different amounts.

You might additionally want to think about using a salt water system instead of chlorine-based treatments. The can expense a little to move from chlorine come a salt chlorinator, however it can be a an excellent long-term decision, both in regards to your maintain costs and also for your irreversible enjoyment of her pool. Inspect our guide to the finest pool salt water systems easily accessible today!

Stabilizers space important!

Remember once I told girlfriend to save your bleach indoors?

Chlorine breaks down when exposed come sunlight, i beg your pardon is why chlorine-based pool treatments often tend to incorporate an added stabilizer.

The most usual chemical stabilizer because that chlorine is cyanuric acid.

Adding cyanuric acid to your pool as soon as you add bleach (or some other chlorine treatment) will avoid the chlorine native breaking down in sunlight and also becoming useless because that disinfection and sanitization. Most experts recommend using around 30 ppm that cyanuric mountain to stabilize the chlorine in your swimming pool water.

Go slow and also ask a pro

We strongly recommend questioning a swimming pool cleaning expert for advice before including bleach, or anything else, come your pool water.


Always add any therapy in stages quite than in its entirety if she the the very least bit uncertain of her outcomes, and also check chlorine levels through a chlorine test kit every time you include bleach or any other chlorine treatment.

Not sure just how much bleach come add, due to the fact that you’re not sure how countless gallons that water are in her pool? questioning your pool builder!

If you"d choose to contact a pool builder today, whether it"s to download a new pool or obtain the many out of the one you currently have, click the switch below and we"ll connect you come an authorized flow Pools franchise close to you:


Fiberglass pool shells have to include thorough dig specs v length, width, depth, and also the volume that water (in gallons) it should host when full.

For example, ours D24 model has actually a 7,500-gallon capacity, while our C40 freeform design holds around 17,000 gallons. Concrete and also vinyl liner pools may be a tiny trickier come estimate, however if you nothing mind act a small math, you deserve to use this formula to number out her pool’s capacity...

Calculating the capacity of rectangular and/or freeform pools:

The formula for calculating the gallons in a generally rectangular pool, consisting of freeform pools with more or much less rectangular structures, is:

Length x broad x typical depth x 7.5

For example, a freeform pool like our I30 style is 30 feet long and 14 feet wide. That depth arrays from 3’9” to 5’6” -- its median depth might be around 4’9”. V 12 inches in a foot, you need to calculate inches as a percent of 12 rather than just using the customs after your decimal suggest -- 9 the 12 is 0.75, so the calculation because that the I30 is:

30 x 14 x 4.75 x 7.5 … or about 14,960 gallons. (14,962.5, to it is in exact.)

The I30’s true capacity is actually just 7,950 gallons, since it has actually a large tanning ledge and ample bench seating.

Most pools will certainly probably have actually a true capacity well below the approximates you’ll get from this formula, because they’re also likely to have shallow-water features and forms that aren’t basic to measure up or account for.

This is why the so necessary to asking your pool builder for accurate measurements, and also why you should include bleach or various other treatments in batches or stages, while experimentation your water after each round of included treatment.

Hire a agree or carry out it yourself?

You probably didn’t come right here for the math. I get it. But if you desire a clean, safe, exciting pool experience this summer, friend will need to acquire your numbers right.

Sometimes it’s simply easier and a lot less stressful to outsource swimming pool maintenance come a expert cleaning service. Your hired pool guy should know just how much bleach (or other chemicals) to add, exactly how to stabilize it, just how to test everything, and also how to protect against wasting resources or turning your backyard oasis into a toxicity stew.

But if you’d fairly keep your pool clean on her own, you have the right to still gain help! There room a pair of highly advantageous pool-maintenance apps available for your smartphone or tablet:

These apps can assist you add the best amount of any kind of chemical to your pool, and also you should additionally be able to track her chemical concentrations end time, in situation you need to figure out why miscellaneous went all of sudden sideways one weekend.

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Hopefully, this short article helped you figure out what come do about your chlorine situation. If friend have any type of questions -- and also you more than likely do -- you re welcome reach out to your friendly neighborhood pool pros. A clean swimming pool is a happy pool. Happy swimming!

At flow Pools, we manufacture world-class fiberglass pools for customers across North America. If you"re shopping approximately for a fiberglass pool, feel free to take a look in ~ our magazine of models, visit our extensive video library, try out ours pool expense calculator, or request practice pricing utilizing the switch below.