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19Fordy · 05-16-2019, 02:06 PM

I also use No-Rosion. To check pH use a test strip like we used to do in high school chemistry class. I use these.
https://www.amazon.com/Hydrion-paper.../dp/B07PB1JL6G

Pool supply stores might also have them.

05-16-2019, 02:06 PM	#3
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,950	Re: Protection for aluminum heads I also use No-Rosion. To check pH use a test strip like we used to do in high school chemistry class. I use these. https://www.amazon.com/Hydrion-paper.../dp/B07PB1JL6G Pool supply stores might also have them.