[mwebb]

Just wonder in any brand of indicator will work. I see refills for low Ph kits, wide range kits etc. So just wondering if it is all Bromethyle Blue or if one brand is better than another for indicator soultion and what do most people use. Thanks

 

[2in10]

I would think so as long as it has not expired.

 

[xmas_one]

Yes.

 

[Hoppy]

No. It has to be one of those which gives you a blue color at 7.2 pH and yellow at 6 pH. There are other pH indicator solutions giving different colors at different pH. If you want to try one of those you need to figure out what KH water will make it work like you want it to. It isn't likely to be 4 dKH.