Clear Up a GREEN POOL in 24 Hours (With NO Algaecide) | Swim University
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- เผยแพร่เมื่อ 31 พ.ค. 2024
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This is the FASTEST way to clear up a green pool. And it’s NOT with algaecide. It’s called the “Shock and Floc” method. It’s a one-two punch that kills algae quickly and clumps it together so you can easily remove it from your pool. While algaecide works well to prevent algae from growing in the first place, it’s less effective and more expensive if you’ve got an already green pool. So if you want to go from green to clean QUICKLY, it’s time to put away the algaecide and use shock and floc instead. Here’s a quick guide on how to use this method to clear up your green pool in less than 24 hours.
⏰ Timestamps:
00:00 - How to Clear Up a Green Pool in 24 Hours
00:57 - Why You Shouldn't Use Algaecide
01:32 - How Shock and Floc Clear Up Green Water
02:25 - Vacuum and Filter Set Up
02:41 - How to Use the Shock and Floc Method
03:00 - #1. Raise Your Water Level
03:11 - #2. Test and Adjust pH
03:21 - #3. Shock Your Water
03:38 - #4. Add Flocculant
03:49 - #5. Run Pump for 2 Hours (Recirculate)
04:03 - #6. Brush Your Pool
04:23 - #7. Let it Sit Overnight
04:38 - #8. Vacuum Out the Algae
05:01 - #9. Skim, Filter, Rebalance
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This is the fastest way to clear up a green pool, but you can also use just shock, like in this video th-cam.com/video/eW9gpfVtDhs/w-d-xo.html And if you need more help, grab the cheat sheet at www.swimuniversity.com/cheatsheet
You have no idea how much your videos helped me. Massive thanks from Mauritius island! 😊
Happy to help!
God bless you sir
I love your materials
I'll sure buy that pool care around July
Glad we could help!
Outstanding Sir. After winterization you helped me a lot! Warmest regards from Austria.
Glad it helped!
Sick couch Matt 😄
I just use more shock. (Tri chlor) lowers ph and raises cyan (not by much about 5ppm per lb) Stuff is perfect for green pools. I dissolve it in a bucket before applying.
Yup, you can definitely just use shock! We have a video all about that: th-cam.com/video/eW9gpfVtDhs/w-d-xo.html
This is great advice for people who have a chlorine pool put cal-hypo wreaks havoc on salt-chlorine generators. If you have a saline (salt) pool, ALWAYS use dichlor shock.
My favorite dichlor shock is Clorox brand, the regular "Shock Plus", NOT "extraBLUE".
Yes, great tip. Dichlor or liquid chlorine for salt water pools. Or stay on top of cleaning your salt cell if you use cal hypo shock.
Thank you so much!! We Shocked and flocked and vacuumed up a ton of mustard algae off of the bottom of the pool. The pool is still greenish and cloudy though. We let it sit again overnight and vacuumed this morning. Wondering if we should floc again? Or what else to do…Free chlorine is very high and ph is very low.
Try bringing your pH up. The free chlorine needs that to be in range for it to work properly
Your videos are realy realy helpful 😊thank you
Glad you like them!
Can you vacuum out the floc with a regular pool vacuum? Like the dolphin vacuum for example
Nope, unfortunately you need a manual vacuum
😊what if i have a hose vacuum
Thank youThank this is a drink of fresh Water!… I definitely now feel confident I can open my poolnow.. last year I was completely defeated! LOL oh and I didn't even know that I had a resurculate option and what it did I always kept my pool on filter haha ha. beginner stupid mistakes......
You're welcome! Hope this helps!
You don't want flocculant in the filter, got that. As an alternative to using the waste setting on the pump can you use a pool cleaning robot with a fine filter?
The issue with the robot is it will kick up the floc and you'll have to start over.
If im not adding the floc until much later how long do I run the shock on recirculate?
Check out this video for complete instructions with just shock: th-cam.com/video/eW9gpfVtDhs/w-d-xo.html
This video was so helpful. One huge question now. The pool is crystal clear about 5 days later i have been battling getting the ph in check, i have it at 7.8 (the alkalinity is in range) and my total chlorine is 0. Your one video says to triple shock it to fix chlorine demand BUT is this actually a chlorine demand problem or the fact that when i vacuumed to waste and lost so much water that it could be the reason it is so low? Not sure if i should triple shock it or go another route? I added two bags of cal hypo the free chlorine went up to 3 ppm a couple hours later but the next morning it was back at 0. Not sure what to do. Thanks again for all your helpful videos
How's your CYA levels looking? And what type of chlorine do you normally use to sanitize?
@@SwimUniversity CYA last night was between 30 and 50. We super shocked it last night added 1 lb of cal hypo per 10k gallons (30k gallon pool) retested this morning 12 hours later the free chlorine was between 2 and 3. Now i just tested again and free chlorine is showing 0 again.
We were using liquid chlorine from local pool store for months , all the numbers were tested and we adjusted however it was needed throughout that time but battled a terribly green pool during it. The first time the pool has been clear since we bought the house in October was after we followed the guide in this video. Have absolutely no idea what to do at this point
You could have a phosphate issue which is a good source for algae and tends to chew thru chlorine quickly as it tries to bloom, also you're not shocking that size pool with 3lbs of shock or 3 gallons of chlorine your gonna need like 12-15 gallons of liquid chlorine that will oxidize and sanitize whatever organic matter in the water that is burning thru the chlorine and leaves you with enough of a base chlorine level to maintain with chlorine tabs. Stay away from cal-hypo shock too it's dirty and adds calcium to the water which cannot be removed unless you drain the pool, calcium hard ess is one of the main indicators the pool needs to be drained. I know that 12 gallons of liquid chlorine seems like a lot but 1 gallon gives you 1ppm of chlorine per 10,000 gallons so your size pool of 30,000 gallons yould need 9 gallons to reach the minimum level of 3ppm for chlorine.
Don't add flock unless you have an unlimited supply of water to refill. You will vacuum so much water to waste! Won't do it again. On a well.
That's definitely why we tell people to top off their pool before starting! Do you end up using just shock instead?
Yea. It took forever to get all the flock out. Ended up trucking water in. It works great when you have the water!
@@justinkeller4008 When vacuuming, I always leave the hose going in the pool
When you are waiting the 8+ hours to let it do the work, are you running it on recirculate or is it completely off?
Off. The instructions on the floc bottle should say the same thing.
Sand filter? Turn to the Recirculate when you add flock so that it won’t clump the algea to the sand! Run on recirculate for 2 hours, then turn the pump off!
Be patient! 12 to 24 hours! Then vacuum!
Refill pool and leave pump off if it’s still cloudy. The Flock should drop some more algae. Vacuum again if you see
Dead algae on the bottom!
It’s a headache, but if your pool is swampy just be patient!
Here’s a secret most pool supply stores WONT tell you: buy a bottle of FILTER MAGIC!
Do what it says to do!
It’s easy and will save you money ! It does clean the sand!! Other wise you’ll spew swampy algae back in your pool when you turn you filter on!
You got this!💪
Ok to use with a DE filter?
Yup, as long as you vacuum to waste! You might not have "recirculate," so brush the shock around for a bit.
When is it safe to turn the filtrate system on again?
After you vacuum out the floc, you should be able to turn it on filter.
If I have a cartridge filter with no recirculate option, can I just take the cartridge out and run it with no cartridge in the filter to recirculate? I can vac to waste, just not recirculate
You should be fine without recirculate. It's ideal but not 100% necessary. You could brush the water around a bit instead. You definitely need a waste setting.
For excellent, fast results I recommend Leslie’s Perfect Weekly. It’s added to the skimmer once a week. It lowers phosphate levels. Algae feeds off of phosphates, so if you lower phosphate levels you get rid of algae. Your pool will look like the Caribbean. Other pool companies also sell phosphate lowering products too but I have only tried Leslie Pool “Perfect Weekly”. It will save you a lot of work and money. It will prevent the use of more harsh chemicals and frustrating vacuuming.
Phosophate remover can work, but only if you're on top of maintaining the rest of the pool (brushing, skimming, balancing water, etc.)
My vacuum uses the water hose so I could still use this method without using my pump, correct?
No don't use flocculent unless you have an extra pump you can hook up to remove the flocculent without using your main pump and filter
This 👆
What about if you have a salt pool ?
Same steps, just use a shock like dichlor shock or liquid chlorine (dichlor will raise your CYA, so watch for that)
Where was this video last year when I couldn't keep my pool from turning green thanks to those mesquite trees. No matter I'm moving my pool this year and not setting it up under the mesquite trees again. I don't want to do that again.
Good call moving it!
@@SwimUniversity I think so too. I think this year we are going to use shade cloth to help block the worst of the AZ summer sun. ☀️
Horrible advice, flocculent can only be used on multiport sand filters because they can bypass the filter. Flocculent will ruin sand, cartridge and DE filters, you're better off treating it with liquid chlorine, phosphate remover (if the phosphate levels are higher than 200ppb) and polyquat algaecide that kills algae independent of chlorine. Most pool owners don't own a portavac system so flocculent is the worst thing you could recommend. I never use flocculent and still get green to cleans turned around in a day, if money isn't an option to the customer I can usually get it cloudy blue before I leave and clears up in a run cycle.
We mention that at the 02:25 mark about this method! We have a video on just using shock if you don't have a multiport valve on your filter: th-cam.com/video/eW9gpfVtDhs/w-d-xo.html
Yes, we use a phosphate remover once a week with no algae coming back the whole season. Leslie’s Pool “Perfect Weekly” works very well for bringing down phosphate levels and therefore eliminating algae.
I lshoked my pool to kill algae it was green now it’s blue but cloudy I added flocc and didn’t work after 24 hours !!😔 what do I do can o just turn on my pump and filter the water again???🙏🙏🙏🙏🟢🟢🟢🟢🟢🟢🟢🟢 help please
What happened after you added floc? Did you try to vacuum it up? It shouldn't pass through the filter.
Leslie Pool’s “Perfect Weekly” will get rid of algae effectively. Add it to the skimmer once a week for terrific results.