How To: Clean A Green Pool

hello pool owners if your pool looks

like this chances are you want your pool

looking like this in this video we're

going to walk you through the steps of

turning your green swampy pool into a


Oasis number one cause of a green pool

is algae algae will start to grow in

your swimming pool if there's a lack of

sanitizing agents in the water chlorine

is by far the most popular most

effective sanitizer that's being used in

swimming pools today if you have a green


you must likely have little or no

chlorine in your water maintaining a

proper chlorine level is the key to

unlocking a crystal-clear pool here at

annual polls we have adopted the slam

method for cleaning your green pool the

slam method was coined by our friends

over at trouble free pool com it stands

for shock level and maintain this means

you will bring your chlorine up to shock

level and maintain the pool at shock

level until the algae is killed off in

this video we will show the slam method

being used to clear up a pool that we

worked on in longwood florida this pool

had been neglected for four years and

literally turned into a swamp we're

talking about hundreds of tadpoles frogs

and four years worth of sludge dirt and

debris even though this was an extreme

case of a green pool syndrome the same

method can be applied to any green pool

scenario before starting you're going to

need some essential items first an FAS

DVD test kit is required to measure free

chlorine at high levels we recommend the

TF 100 kit from TF test kits net next

you'll need also a telescopic pole net

brush and vacuum the first step will be

to clear your pool of debris organic

material is a consumer of chlorine and

the more you can remove early on the

less chlorine you'll need to use later

depending on how bad your pool is the

debris removal can be a big project or

small in the case of the pool we were

working on this is one of the more

time-consuming parts of the process as

there was an extreme amount of debris in

the pool surface skin deep net and

vacuum as much debris as possible if

your pool floor is extremely dirty as in

our case we recommend vacuuming two ways

to avoid clogging up your filter

the next step is to test and treat your

pool water it's best to start out by

testing your pH because once you start

to slam the pool with chlorine your pH

readings will not be accurate your pH

should be between seven point five and

seven point eight if your pH is above

seven point eight use muriatic acid or

ph decreaser to lower the level if your

pH is below seven point five use pH

increase or or soda ash to raise the

level next you'll need to test the

cyanuric acid in your pool also known as

cya or stabilizer the relationship

between free chlorine and cya is

possibly the cornerstone of the slam

process as mentioned before chlorine is

consumed by organic material but is also

consumed by UV rays from the Sun cya

axis sunscreen for your chlorine if it

is too low the chlorine will rapidly be

consumed by a hot Summer Sun however if

your CY is too high the chlorines

effectiveness will greatly be reduced

thirty to sixty parts per million cya is

an ideal ring for non saltwater pools

for saltwater pools 70 to 80 parts per

million is recommended if your cya is

above where below the recommended levels

use the pool math calculator to

calculate how much you will need to add

or remove from your pool remember the

only way to remove cyanuric acid is by

lowering water levels and adding fresh

water so take special care when adding


once your CoA is at proper levels you

can move on to testing free chlorine an

FAS DPD test kit is required for the

slam process which will allow you to

read the high chlorine levels required

to shock the pool if your pool is as

green as ours it's likely that you will

have a reading of zero parts per million

free chlorine in your pool next it's

time to determine the shock level you

will use to slam your pool by referring

to the trouble-free pool see why a

chlorine chart this chart list of free

chlorine chocolate will that corresponds

to the cya rating each other earlier the

pool we worked on had a cya reading of

30 parts per million so according to the

chart we need to reach a shock level of

12 parts per million free chlorine

use the pool math calculator to


how much chlorine you will need to reach

shock level we needed to add three and a

half gallons of 10 percent liquid

chlorine to reach 12 parts per million

make sure you leave your pump running

24/7 while slamming your pool to ensure

proper circulation and filtration of the

water often times many people will shock

their pools and call today but the first

part of the slam process is useless

without the last which is maintaining

shock level the cuts chlorine is

consumed by organic material and

sunlight the chlorine level will

constantly be depleting as algae is

killed off it's extremely important to

maintain your required shock level to

ensure that the algae will not bounce

back if free chlorine levels drop we

recommend testing free chlorine every

couple hours at the start of the slam

process and continue adding the

appropriate amount of chlorine to

maintain shock level as algae is killed

off the chlorine will start to be

consumed more slowly and won't need to

be checked as often now that you have

chlorine in your pool and you're

maintaining your proper shock level the

waiting game begins it's important to

backwash or clean your filter daily to

remove dead algae that your filtration

system is picked up continue to vacuum

your pool floor each day to get rid of

dead algae that has settled to the

bottom and don't forget to brush your

pool walls to dislodge algae which is

clinging to the sides of your pool you

should see a noticeable difference each

day as your pool transitions from green

to cloudy blue to clear once the pool is

clear it's time to reform the overnight

chlorine loss test this test will let

you know if there is any more algae

remaining in the pool first take a

chlorine test in the evening after the

Sun has gone down record the levels in

the morning before the Sun comes up test

your free chlorine again if the reading

has stayed the same or has dropped less

than one part per million and your

combined chlorine is less than 0.5 and

there are no more organic contaminants

in your water and you've passed the o CL

T however if your free chlorine has

dropped more than one part per million

or combined chlorine is above 0.5 and

you will need to continue to maintain

your pool s shock level and perform the

o CL t the following night once the o CL

T is passed you've completed the slam

process now that your pool is looking

great again

it's an

to maintain your target chlorine level

in relation to the cya levels in the

pool perform weekly tests of your pH

free chlorine and cya and brush and

vacuum your pool weekly for more

in-depth look at the pool we slammed

visit us over at /blog if

you want to perform a slam process on

your pool after watching this video feel

free to leave a comment down below that

includes your test results and pool size

and we'll do our best to help you out

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