Do you really need to shock your pool after it rains?
In the event that you've just seated through a substantial downpour, you're likely staring out the particular window wondering, should you shock your pool after it rains , or may you just allow it be and hope for the best? It's a classic pool owner dilemma. On one hand, you don't want to waste costly chemicals if you don't have to. On the some other hand, nobody wants to wake upward to some cloudy, natural swamp where their particular crystal-clear oasis used to be.
The short response is: usually, yes. But it's not merely about dumping the bag of powder into the heavy end and phoning it a time. Understanding why the rain messes along with your water biochemistry can help you decide exactly just how much work you actually need to perform.
Why rain is more than just extra water
It's easy to think associated with rain as simply "free water" intended for your pool, but it's actually a bit of a delivery system intended for things your pool hates. As rain falls through the particular sky, it picks up all types of microscopic hitchhikers. We're referring to dirt, pollen, mold spores, and various contaminants floating up.
Once that will water hits your pool, it brings all those impurities with it. In the event that there was a lot of breeze involved, you've furthermore got physical particles like leaves, twigs, and grass clippings. All of these organic materials start breaking down immediately, and they are usually essentially an all-you-can-eat buffet for algae and bacteria.
The nitrogen problem
Rainwater usually contains nitrogen. While that's perfect for your lawn, it's the nightmare for your pool. Nitrogen will be a primary meals source for algae. When a weighty rain dumps a bunch of nitrogen into your drinking water, you're basically fast-tracking an algae blossom. This is 1 of the primary reasons why individuals find their pool looking "dull" or even slightly green just a day or even two after a storm.
How rain affects your pH balance
One of the most overlooked problems with rain is what it does in order to your pH levels. Most rain is naturally slightly acidic. Depending on where you live, the pH of rain could be significantly reduced than the 7. 4 to seven. 6 range that your pool requires.
When acidic rainwater mixes with your pool water, it can cause your overall pH plus total alkalinity to tank. Why does this particular matter for shocking? Because chlorine is of a diva. If your pH is too low or as well high, chlorine turns into much less efficient. If you try to shock your pool while the ph level is out of whack, you're essentially throwing cash away because the chlorine won't be able to perform its job associated with killing off the new contaminants.
The dilution effect
Even if the rain was "pure, " a heavy surprise can dump a number of inches of water into your pool. This dilutes the particular concentration of the chemicals already within your water. If you were sitting down at a perfect several. 0 ppm (parts per million) of chlorine before the storm, a couple of hours of heavy rain can easily drop you down to one. 5 or 1. 0 ppm. When this occurs, your pool will be vulnerable.
Gentle rain vs. a total washout
You don't necessarily require into full "shock mode" after every single little sprinkle. If you just had a light drizzle intended for twenty minutes and the wind didn't kick up, your pool is probably good. In those cases, a quick water test is normally enough to confirm that your levels continue to be within the safe area.
However, when you had the "sideways" kind of rain—the type that lasts for hours, overflows your skimmer, and blows half the neighborhood's landscaping into your water—you certainly need to take action. A good principle of thumb is that if the rainfall was heavy enough to improve the water level of your pool by a good inch or even more, it was weighty enough to clutter with your biochemistry and biology.
The step-by-step process after a storm
Before you just start ripping open hand bags of shock, there's a bit of a sequence you should follow to get the greatest results.
one. Clean out the big stuff
First things first: obtain the physical rubbish out. Use your leaf skimmer to have the floating debris from the surface, and check out your skimmer containers. If those baskets are clogged along with leaves, your pump can't circulate water properly, and your chemicals won't distribute evenly. If typically the bottom of the particular pool is covered in dirt or even leaves, give it a quick vacuum. Shocking a pool that is complete of leaves will be a waste, since the chlorine will spend all its power attacking the results in instead of the microscopic bacteria.
2. Check your water level
If the rainfall was heavy enough that your pool is nearly overflowing, you may need to deplete a bit of water. You want the drinking water level to be correct about the core skimmer opening. If it's too high, the skimmer won't be able to pull debris off the surface successfully.
3. Test water
Never ever skip this. You need to know your beginning point. Test your pH, alkalinity, plus chlorine levels. When your pH provides dropped below seven. 2, you require to bring it back up before you shock. As we mentioned earlier, shock works best when the water is definitely balanced.
4. Shock it on the right time
If you've made the decision that you should shock your pool after it rains, perform it at night. This is a pro tip that a lot of new pool owners miss. The sun's UV rays eat up unstabilized chlorine extremely fast. If you shock the pool at 10: 00 AM on a sunlit day, an enormous piece of that chlorine will be gone before it has an opportunity to sanitize the water. Shocking at dusk or night time gives the chemical substance a good 8 in order to 12 hours to work its miracle without interference from the sun.
Choosing the right type of shock
Not just about all shock is made equal. Depending on exactly what your test outcomes showed, you might choose one within the other.
- Calcium Hypochlorite (Cal-Hypo): This is actually the most common plus powerful type associated with shock. It's great for a heavy-duty "reset" after a storm, but it will slightly raise your calcium amounts.
- Sodium Dichlor (Dichlor): This really is stabilized shock, meaning it contains cyanuric acid. It's user friendly but can raise your stabilizer amounts over time, which eventually makes your chlorine less effective.
- Non-Chlorine Shock (Potassium Monopersulfate): This particular is great if the rain wasn't too bad and you just desire to "oxidize" the water and get free of contaminants with no raising chlorine amounts drastically. The best plus here is that you can go swimming just 15 moments after using it.
Don't overlook the filter
After you've surprised the pool, maintain your pump and filter running for at least 24 hours. The filter is usually what's going to catch all the particular dead algae and debris how the shock has neutralized. If the water looks cloudy the following day, it's generally just a sign that the filter is working. You may need to backwash your filter or even clean your carts and catomizers a bit more frequently in the days using a big thunderstorm.
Keeping an eye on issues
In the particular 48 hours pursuing a storm, keep an eye upon your water clearness. Sometimes, a storm can trigger a "delayed" reaction exactly where the pool looks fine on Mon but starts switching hazy on Thursday. If you notice a loss of sparkle in the water, it's a sign that your chlorine is dropping the battle plus you might require a second round of shock or the dose of algaecide.
At the end of the day, a little bit involving preventative maintenance goes a long way. It's much less expensive and simpler to toss in a handbag of shock now than it is to buy a dozen jugs of liquid chlorine and spend per week scrubbing algae from the walls afterwards. So, while you may not always have to do it, shocking your pool after a substantial rain is usually almost always the particular smartest move for your wallet plus your weekend plans.