Help needed should I drain my pool?

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
22,404
Laughlin, NV
Welcome to the forum!

IF those numbers are close to correct, you will need to exchange your pool water for fresh.
This forum advocate’s pool owner testing. Order a TF-100. It is properly sized for the residential pool owner.

The only other real option for a test kit is a Taylor K-2006-C.

I also have the Speedstir. It makes testing much easier.


I suggest you read ABC's of Pool Water Chemistry and consider reviewing the entire Pool School eBook.
 

kimkats

Mod Squad
LifeTime Supporter
Jul 10, 2012
41,276
Tallahassee, FL
How did they test your water? Most CYA tests only go up to 100 so for them to have a reading of 300 is unusual. Like Marty said you REALLY need to get your own test kit as most pool stores don't do the test correctly or if it a machine they do not calibrate it as needed.

IF those numbers are even close then yes you do need to remove and replace quite a bit of the water. As for draining and acid washing that is up to you. Just know the acid wash will remove some of the plaster and that could shorten your plaster's life.
 

Mikeyvaz

New member
Mar 15, 2019
2
Gilbert
How did they test your water? Most CYA tests only go up to 100 so for them to have a reading of 300 is unusual. Like Marty said you REALLY need to get your own test kit as most pool stores don't do the test correctly or if it a machine they do not calibrate it as needed.

IF those numbers are even close then yes you do need to remove and replace quite a bit of the water. As for draining and acid washing that is up to you. Just know the acid wash will remove some of the plaster and that could shorten your plaster's life.

I do have my own kit K-2006 just not too comfortable reading it. I better start after this problem . So if I drain most of the water and start fresh what could I add for the dirt scale ? I really do hate to acid wash since pool got redone a few years ago.

Thanks
 

setsailsoon

LifeTime Supporter
TFP Guide
Oct 25, 2015
1,548
Stuart/FL
Mike,

My advice is this: water is cheap compared to your finish, even in Arizona. Refil per the experts here to get good water then follow the TFP method. A good scrubbing may make the pool acceptable or better. If not then maybe you go with a more aggressive cleaning. There are LOTs of people here with Arizona experience. TFP method is easy and avoids all the pitfalls with just a little effort each week. See the link in my signature that describes my pool experience here. It may contain some helpful stuff for you. Also, do the tests yourself. You'll gain confidence as you get repeatable test results. It takes some care and effort to do the tests right. Pool stores are notorious for getting bad results. They need to do maintenance on their machines to get good results, also they need to test with good lab techniques. Not all do this and you just don't know if they are doing it right or not until you've made your problem worse and usually spent hundreds of $ with no improvement.

Good luck!

Chris
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
22,404
Laughlin, NV
Mike - if you have a K2006 but have not been using it, be aware the reagents have a shelf life. If stored under controlled conditions, they can last two seasons. But if kept in your garage or shed in Arizona, after one season, they are toast. Order a complete refill bundle from TFTestkits.
 

tstex

Silver Supporter
Aug 28, 2012
1,681
Houston, TX
Welcome
1. These test results are way off...as Marty stated, how old are your testing chemicals and where are they stored? If you have a nbor or friend that has 1 yr or less and kept inside chemicals, I suggest you two test your water w their chemicals then post back.
2. Yes, you need to drain for sure if those results are correct...and, before you fill your pool, scrub and clean
3. Before you fill your pool part 2, test your fill water for pH, CH. This can help immensely on how to prepare your pool

Post back and let us know
 

getreal720

Well-known member
Jul 7, 2018
130
Pittsburgh / PA
I wouldn't trust the pool store numbers. I'd at least get results from one if not two more pool stores.

Ideally, Id buy the TF-100 kit and do the tests yourself. Once you get the hang of using the kit, which is
not difficult, you will get much more consistent and reliable results.


IF your numbers are that high, particularly CYA and CH, then you will need to drain basically all of the water
and refill it. If it's an inground time, may be a good time to scrub, paint and maintain your pool at that time.
Don't trust that the pool store numbers are correct.
 

kimkats

Mod Squad
LifeTime Supporter
Jul 10, 2012
41,276
Tallahassee, FL
I took my water to 3 different stores. Two had the same name but were on different sides of town. All three were national brand stores. I got three VERY results with the "fix" ranging in cost from $50 to $124 :shock: The bad part? I had tested my water at home right before I left AND tested the same water again when I got home (I had it in a large bottle to make sure I would have enough of the exact same water to run all of these tests). My water was within range for all things. I will say my pH was up a little and FC down a little when I got home but it was still within range!

SO taking it to two different stores will not really help you much UNLESS you know they use the drop kit like we do and make sure to rinse all vials and take their time with the tests.

Kim:kim:
 

getreal720

Well-known member
Jul 7, 2018
130
Pittsburgh / PA
I think the most valuable part of using multiple stores is the expectation that you will get some largely different results, and realize that "most" pool store tests are full of bologna. A real testing kit like the TF-100 used by someone versed in it is the best way to get accurate results :)
 
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