What You Should Do to Your Pool After it Rains

What do you do with your pool after it rains? Rain can be acidic and it affects your pool’s pH balance. After a heavy rain, you’ll also have extra water in the pool that can dilute the chemistry.

If you get some light showers, I wouldn’t worry too much about the pool chemistry. A light rain will have very little effect, if any, on your pool water. However, it wouldn’t hurt to do these checks anyway, if only for good measure.

What You Should Do to Your Pool After it Rains

How To Prepare Your Pool For a Major Rain Storm

Create a checklist of the following so you know exactly what you need to do to get your pool ready to weather the impending storm.

1. Store Outdoor Furnishings and Pool Accessories Indoors

Remove anything that isn’t tied down. Any pool toys or floats you have sitting in or around your pool should be brought inside (like a storage shed If you click this link and make a purchase, we earn a commission at no additional cost to you. or garage) so they don’t turn over or blow into your swimming pool. This includes:

Important: Do NOT put your patio furniture in the pool to protect it from the storm. Folks have been known to do this, but it’s not safe for your pool structure or pool water.

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2. Disconnect All Electrical and Gas Lines to Your Pool

Make sure you turn off your pump before a storm. If you have a timer If you click this link and make a purchase, we earn a commission at no additional cost to you. installed, check to make sure the timer won’t kick the pump and filter back on in the middle of the storm.

If you have a cover for your pump and filter, it’s a good idea to use it before the storm. I would also suggest using a heater cover and turn off the gas line as well.

Take special care to shut off all your gas lines properly to minimize the risk of a gas leak if the storms hit your home pretty hard.

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3. Prepare the Pool Water

Balance the water properly and even add a little algaecide If you click this link and make a purchase, we earn a commission at no additional cost to you. (optional). This will help fight off many of the organic contaminants that are brought in by rainwater and make it easier to clean your pool after the storm.

Optional: A properly installed pool is equipped with overflows designed to drain excess water. However, you can lower the pool by about one foot. If you lower the pool more, the hydrostatic pressure generated by storms could be too strong for the pool causing it to pop out of the ground.

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5 Steps to Clean Your Pool After a Rainstorm

Now that the storm has passed, and everything’s back to normal, you can clean your pool from the storm. Hopefully, if you followed all the instructions for protecting your pool, you won’t have much to worry about.

How to Clean a Swimming Pool After a Storm

1. Turn On Your Pool Pump and Filter

If you’ve lost power, you won’t be able to properly clean your pool. First, remove any debris from the skimmer and pump baskets before starting your pump and filter If you click this link and make a purchase, we earn a commission at no additional cost to you. .

First, remove any debris from the skimmer and pump baskets before starting your pump and filter. Then, get the pump running so that you can start filtering out any small debris.

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2. Remove Debris From The Water Surface With A Skimmer

Attached a leaf net or flat skimmer If you click this link and make a purchase, we earn a commission at no additional cost to you. to your telescopic pole If you click this link and make a purchase, we earn a commission at no additional cost to you. and make sure all the debris is off the top of the water.

NOTE: If you don’t do this before vacuuming, you’ll have more to vacuum when all of the surface debris falls to the bottom.

You can also use a garden hose If you click this link and make a purchase, we earn a commission at no additional cost to you. or broom If you click this link and make a purchase, we earn a commission at no additional cost to you. to clean the deck and around the pool so no extra debris gets in while your skimming. If you decide to use a garden hose, I suggest spraying away from the pool so you don’t create more work for yourself.

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3. Brush And Vacuum Your Pool

Brush any debris from the steps or ladder(s) of your pool so your vacuum or filter can get it. If you have a drain at the bottom of your pool, use your pool brush If you click this link and make a purchase, we earn a commission at no additional cost to you. to push debris towards that.

If your pool doesn’t have a lot of debris at the bottom, you can use an automatic pool cleaner If you click this link and make a purchase, we earn a commission at no additional cost to you. instead of your manual vacuum. If that’s not the case, vacuum your pool manually.

Note: If you had a lot of rain, your pool may have extra water. This is good if you need to vacuum at a lot of debris off the bottom of your pool to waste. But if you have little or no debris, pump the excess water by turning your filter to “waste,” hooking up your backwash hose, and turning your pump on. Pump out the water until the waterline reaches the halfway point on the skimmer plate or about 6 to 8 inches from the top of the pool.

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5. Test The Pool Water

Test If you click this link and make a purchase, we earn a commission at no additional cost to you. to make sure your levels are still in a good range. Rain and debris have a big effect on your water’s chemistry and rain can cause your pH to drop quickly If you click this link and make a purchase, we earn a commission at no additional cost to you. . If the storm was big, it may be a good idea to get the water professionally checked; you don’t want to end up with a green or cloudy pool from the storm.

Note: When rain tries to lower the pH, the alkalinity will take the big hit. That means, your alkalinity levels might see a more drastic change than your pH levels.

Also, check your chlorine If you click this link and make a purchase, we earn a commission at no additional cost to you. or sanitizer levels. Rain can often introduce contaminants to your water, and your sanitizer will start fighting them off.

You won’t need to worry too much about your calcium or cyanuric acid levels. These are not greatly affected by the rain beside dilution.

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Should You Shock The Pool After a Rainstorm?

Shocking your pool isn’t necessary, although, it’s not a bad idea. If you get an extremely heavy rainfall, you could shock your pool for good measure. This will help fight off any contaminants that the rain may have brought to your pool.

Just make sure you drain the water to the correct level, check your pH, alkalinity and sanitizer levels, then add shock If you click this link and make a purchase, we earn a commission at no additional cost to you. add shock in the evening after the rain has ended.

Of course, you should avoid swimming in your pool during a thunderstorm because of lightning, and you should probably just avoid swimming during the rain for this reason alone.

Runoff from your pool deck may also bring in some contaminants from your lawn or the deck itself. Again, make sure you follow this checklist after a heavy rainfall and your pool won’t have any issues including, cloudy pool water or pool algae.

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After the storm has passed and the pool is completely cleaned, you can enjoy swimming in it once again. Hopefully, you don’t get many big storms that shut down your pool. A little extra rain never hurt, but the wind is the biggest problem.

Happy Swimming!

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