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Salt water pool maintenance

Posted on 2/2/26 at 3:38 pm
Posted by gungho
Member since Jun 2016
224 posts
Posted on 2/2/26 at 3:38 pm
Anyone compare self- testing water and chemical purchase from walmart/big box stores with testing at pool specialty stores and purchase their chemicals, i.e. any significant difference in quality between the two approaches?
Posted by jmon
Loisiana
Member since Oct 2010
10224 posts
Posted on 2/2/26 at 6:18 pm to
Pool stores want to sell you chemicals, and they WILL.

Get a high quality self testing kit and handle things yourself.

A great website to join is Trouble Free Pools. You will never go back to a pool store, ever.

Trouble Free Pools
Posted by WhiskeyThrottle
Weatherford Tx
Member since Nov 2017
7045 posts
Posted on 2/3/26 at 9:35 am to
quote:

A great website to join is Trouble Free Pools. You will never go back to a pool store, ever.


Their method is 100% effective but unopen for discussion. Unrelated to salt water pools, but their rigidity on sourcing liquid bleach for chlorine is impractical. . . I'd be going through 100 gallons of bleach a summer using their method. So, I do use Leslie's granular chlorine. And I also quit using pucks for a summer and I learned that my CYA was WAY too low. So when my CYA tests low, I just use pucks to chlorinate and bring the CYA back up. When it tests in range, I quit using pucks. My first year with a pool, I used pucks exclusively. Every 3 or 4 days go throw some in the auto chlorinator, and the pool stayed crystal clear. Then I learned about CYA, and now I manage CYA with pucks and it makes managing the pool easier for me.

TFP would absolutely shite all over my strategy but it works for me.

Long story short, learn how each chemical impacts other chemicals and use it to your advantage.
This post was edited on 2/3/26 at 9:37 am
Posted by DickTater
Geismar
Member since Feb 2013
173 posts
Posted on 2/3/26 at 10:11 am to
I like TFP but do agree they can be rigid. If you know the makeup of the chemicals you can do your own thing if you’re competent.

I think chlorine pucks and liquid makes sense for your pool.

I use a test kit from tfttestkits.com

It uses Taylor reagents and is highly recommended and accurate.

I have salt pool, I keep my salt around 3000 ppm. I don’t over do it bc we get so much rain I end up washing out excess salt so would be wasteful.

I add acid, calcium, and cya individually.

I added boric acid to try to help stabilize the ph rise (didn’t notice much difference), but as mentioned above the summer wash out was too great and boric acid is costly.

I keep my ph around 7.8 during summer ..kids eyes like higher

My salt cell is off right now, not gonna be much chance of algae bloom with water being so cold.
Posted by diat150
Louisiana
Member since Jun 2005
47430 posts
Posted on 2/3/26 at 10:56 am to
dont trust the pool store water testing, they will modify the numbers to sell chemical in their "program"

get your own high quality test kit. LINK

Posted by RoyalWe
Prairieville, LA
Member since Mar 2018
4474 posts
Posted on 2/3/26 at 11:17 am to
quote:

I add acid, calcium, and cya individually.
I do this as well, but the post above has me wondering if I shouldn’t use a puck with CYA every now and then to lengthen the time between CYA depletion below unacceptable levels. It’s kind of a pain in the butt to add CYA (at least the way I do it). I put it in hosiery/socks and drop it into a suction filter bucket to dissolve over time. It works, but I only do it maybe once or twice a year. I usually see some water quality change (algae) before dealing with it.

More toward the OP — learn what you’re supposed to do when bad things happen and then use what works for you.
Posted by tigerfoot
Alexandria
Member since Sep 2006
61052 posts
Posted on 2/3/26 at 11:29 am to
quote:

My salt cell is off right now, not gonna be much chance of algae bloom with water being so cold.
I was told it didn’t generate chlorine when pool temps dropped below 60
Posted by tigerfoot
Alexandria
Member since Sep 2006
61052 posts
Posted on 2/3/26 at 11:44 am to
Test yourself. If you insist on a store pick a good one. Many don’t flush between uses and you get readings that are off. Also, find a good local shop and they are generally much more affordable than Leslie’s and such. In hot summer I use a puck or two to keep cya up and augment my SWG. My fight is with ph. Even when everything is in correct ranges I have ph creep up.
Posted by diat150
Louisiana
Member since Jun 2005
47430 posts
Posted on 2/3/26 at 4:10 pm to
quote:

but their rigidity on sourcing liquid bleach for chlorine is impractical. . . I'd be going through 100 gallons of bleach a summer using their method


I do it and its not a big deal. usually about 3-4 gallons per week during peak season assuming your cya is in proper range. way less $ than the pool guy. I fought with sky high cya after getting rid of the pool guy I basically had to drain my pool down 4-5 times to get cya to an acceptable level. havent had any issues since. chlorine consumption is way less right now so maybe 1-2 jugs a week now. I have thought about designing a pump system to pump bleach and maybe acid from larger jugs along with switches to notify if it gets low. that way I can do even less babysitting.

Posted by turkish
Member since Aug 2016
2319 posts
Posted on 2/3/26 at 6:00 pm to
Where do you buy chlorine? That seems like a lot!
Posted by RoyalWe
Prairieville, LA
Member since Mar 2018
4474 posts
Posted on 2/3/26 at 6:16 pm to
quote:

I was told it didn’t generate chlorine when pool temps dropped below 60
Mine has a light that comes on when it's too cold to let you know it's not generating chlorine.
Posted by luvdoc
"Please Ignore Our Yelp Reviews"
Member since May 2005
1123 posts
Posted on 2/3/26 at 8:41 pm to
Same question, best source for high concentration chlorine in bulk?
Posted by xBirdx
Member since Sep 2018
2534 posts
Posted on 2/3/26 at 11:42 pm to
I self test mine about 3 weeks out the month, and get pool store to do it 1 time bc I’m buying acid about that often.

It’s usually about the same

Find a locally owned pool store and meet the owners

BA pool in walker. Or sunshine pool in denham are both honest
Posted by diat150
Louisiana
Member since Jun 2005
47430 posts
Posted on 2/4/26 at 8:28 am to
quote:

Where do you buy chlorine? That seems like a lot!


walmart seems to be the cheapest. my wife hits walmart once or twice a week and I pass by two of them on my way home from work.
Posted by turkish
Member since Aug 2016
2319 posts
Posted on 2/4/26 at 9:02 am to
Man. $80-100/month in chlorine?! How big is your pool?
Posted by rltiger
Metairie
Member since Oct 2004
2165 posts
Posted on 2/4/26 at 11:57 am to
Get PoolRx
PoolRx


It 100% works.

I had black spots and some algae I couldn’t completely control in my salt pool. Constantly adding more chlorine to knock it back. Put that little thing on pool filter basket and no more problem.

Pool is crystal clear and bottom and sides are spotless. It’s been 6 months and about time to change. This is by far the one pool item I have purchased that exceeded all expectations.
Posted by lilsnappa
The Lu
Member since Mar 2006
1873 posts
Posted on 2/4/26 at 9:06 pm to
The OP was asking about saltwater pools.

I use the cheap testers from Walmart/HD/Lowes for weekly management. I have an expensive testing system that I only use when things are getting out of hand.

For a saltwater system, other than keeping the PH in check, I don’t really ever use any other chemicals.

I may run a 24 hr super chlorinate cycle every now and then. But that’s really it.
Posted by TheDude854
Member since May 2019
394 posts
Posted on 2/5/26 at 10:32 am to
I live near one pool store and then there’s another right by my local Lowe’s. So I get my water tested ant either about monthly, more often in the summer. And then I buy any chemicals I need from Lowe’s. I have a basic Taylor testing kit too but don’t really use it anymore.

With a saltwater pool, the main chemical you’ll need to add weekly is acid bc the salt cell produces alkaline water when it splits NaCl into free chlorine and NaOH. So the pH will always be rising. With my size pool, I know I need to add around a quart of muriatic acid weekly (more in the summer when I’m running my salt cell at a higher percentage and running my pump for a longer period of time each day). After a year or two of testing weekly, I stopped testing weekly and now I just add acid weekly.

Most salt cells have a low-salt indicator, so I just add salt when the cell says I’m low. No need to test. I know I need to increase the percentage of the salt cell when the weather starts to warm up or the pool water starts to look a little cloudy. After a couple years of having a pool, you can usually tell when your chlorine level is too low. I also keep some liquid chlorine on hand just in case.

The other measurements (CYA, Calcium) won’t change abruptly. Checking monthly is fine.
Posted by amgslg
Member since Jun 2014
392 posts
Posted on 2/9/26 at 8:17 am to
I use the Taylor test kit and the TFP app — specifically the chlorine and CSI parts of that app. If I need chlorine I just run the salt cell at 100% for however many hours the app recommends [this will show up when you enter your current chlorine and CYA in the chlorine section]. The CSI part of the app tells me if the water is in balance and if I need to add calcium, acid or CYA. The CYA just goes in a filter sock in the skimmer basket. Ive never added liquid chlorine or pucks and can’t imagine why you would do that.
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