ph liquid test question

[kyle89]

What's the difference between high range pH and pH???

[tekkguy]

The regular pH test only goes so high. There's a difference in the chemicals (or the concentration of chemicals?) in the high range test.

If your pH tests on (and especially above!) the high end of the regular test, test it with the high range one to find out how high it is.

[kyle89]

Than can someone please explain this?

[ryancalif]

^ Looks like someone else had a similar problem. http://www.fishlore.com/fishforum/fr...nreadable.html

I would try retesting.. make sure to rinse the vial and cap in aquarium water after testing with the normal pH solution.

[kyle89]

I actually have 5 test tubes so they where tested at the same time in different clean tubes. I will re clean the test tubes and re test

[ryancalif]

Kyle,

Try testing your tap water using both the low- and high- pH test solutions. Let us know what your results are.

We can at least find out if one (or both) of your pH solutions has gone bad.

[kyle89]

Tested the tap water

Than I rinsed everything really good an tested the tank

[ryancalif]

Your tap water is 8.4? I have a hard time believing that... I suppose it's possible depending on the source of your water, but that's quite high.

The only conclusion I can draw from this, assuming your tap water is actually normal (6.8-7.4), is that your test solutions have gone bad. At least the pH bottles.

You might want to buy a cheap pH-only test kit at the store and test your tap water with it. If it still reads high, let us know.

I'm guessing you've already checked the expiration date on your API kit?

[kyle89]

2017. My great LFS has the individual bottles for 4 dollars I will get one