First Time Test Results

[rvogel0311]

I got a Taylor K-2006 kit recently and tested the water yielding these results:

FC: 10.5
CC: 0 (no color change when I add the DPD Reagent #3)
pH: 7.4
Alk: 180
CYA: 90

I took a sample to the pool store today and got these results:

FC: 6.24
CC: 0.45
pH: 6.9
Akl: 111
CYA: 92
Hardness: 126

They said the low hardness was of particular concern and want me to put 25lbs of hardness in the pool.

I came home and tested again, and this time did Hardness as well and got the following:

FC: 9.2
CC: 0
pH: 7.2
Hardness: 310

My questions are:
1. Can their chlorine readings be that far off? and can I really have 0 CC?
2. I have never had a problem with Hardness before and I did the test twice to confirm the result. Can they be that far off?

My pool is clear and beautiful. I don't want to start dumping tons of chems in if i don't have to (and as I have done before based on their recommendations) I plan on adding Borax to bring up the pH and knock off the tri-chlor soon.

I have an at least 25-year old 25,000 gal in-ground plaster pool. DE filter and live on the central East coast of the US (PA).

 

[Butterfly]

You have one of the recommended test kits and you should always trust your testing over any pool store.

And, yes, their tests can be that far off; for various reasons, beginning with their testing techniques and equipment.

If you would like to read Extended Test Kit Instructions, here's a link: extended-test-kit-directions-t25081.html

 

[rvogel0311]

Thx Butterfly - just needed some confirmation.

 

[jblizzle]

Trust your own tests.

Why do you want to raise the pH from 7.4?

Your CYA is already very high and a 50% water change would not be uncalled for.

Posted with Tapatalk ... sorry if I sound short ... hate typing on phone

 

[rvogel0311]

I tested today at 7.2, seems to be falling so I thought to bring it up. But if it is not necessary yet I will wait.

We have been getting tons or rain so I am hoping if I get off the tri-chlor, I can hold out until the end of the season. I usu drain the pool about halfway on closing b/c I have a mesh cover and it fills up by spring.