Report on Salt Water Testing

goody222 · Sep 12, 2018

So test results for salt has always bothered me. I posted this issue before and I understand that the different methods have a large +/- range, and to just make sure that I go by what my Hayward Aqua Plus says (which I do). So I found a 3000ppm salt solution on Amazon and figured I'd post the results here. I know people consider drop test kits to be the best, but it wasn't my case for salt testing. Just wanted to share my results. At least they all track each other with an increase or decrease in salt.

Current Hayward Aqua Plus readout = 2800 ppm

3000 ppm Salt standard:
eSeasongear SALT-3050 ($38 Amazon) = 2920 ppm
Taylor K-1766 test kit = 3400 ppm

Catanzaro · Sep 13, 2018

I only work with one test, and that is the Taylor K-1766 salt test kit. There are variations between most kits and you basically have to just use one that you are comfortable with. The Hayward will be off. My levels are around 3,000 and Hayward states 3,400.

jblizzle · Sep 13, 2018

When did you stop with the Taylor salt test?

The end point is then it first changes from and does not go back to yellow. If you add drops to the brick red color, that is too far.
This is the only test where you do not keep adding drops until the color change stops.

YippeeSkippy · Sep 13, 2018

True dat, jbizzle..... the first time the fluid turns brick red (entirely, from the yellow) is the end point and you do count that number. No additional drops needed.

Maddie :flower:

jblizzle · Sep 14, 2018

Actually brick red is too far. I think it is supposed to go to a salmon color first. Although at 10ml of water it may skip right over to red.

Catanzaro · Sep 14, 2018

Here are the instructions for the Taylor Salt Test Kit:

Once it turns to a milky salmon (brick) red, that is the ending point. Going to brown is too far.

jblizzle · Sep 14, 2018

I guess in my mind milky salmon and brick red are nowhere close to the same color

YippeeSkippy · Sep 14, 2018

No confusing milky yellow, right? So the drop that changes the entire sample from milky yellow to something between salmon & brick is it.

Maddie :flower:

Dirk · Sep 14, 2018

Maybe this post of mine could be helpful? I struggled in the exact same way as you all.

Getting ready for SWG

But the following post, #4 by Matt, has some good info about the color change and about a more accurate test (25ml sample)...

Caution! (And advice.) My interpretation of the result of that test in post #3 were incorrect, because I was doing the math wrong, which wasn't caught until much later in that thread by another TFP expert. Point being: in addition to getting the color transition right, make sure you're doing the math right!

jblizzle · Sep 14, 2018

Before I added salt, I was doing the 25ml (80ppm / drop) version of the test to figure how much salt to add. But once you are up around 3000ppm, no really need for that accuracy.

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Report on Salt Water Testing

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