Just after post the question I found the Tech Sheet on Five Star's website. It says that the sanitizer is good so long as the pH remains below 3. Since I'm keeping it in a spary bottle with distilled water it shouldn't ever get above 3.

Just after posting the question I found the Tech Sheet on Five Star's website. It says that the sanitizer is good so long as the pH remains below 3. Since I'm keeping it in a spray bottle with distilled water it shouldn't ever get above 3.

Just after post the question I found the Tech Sheet on Five Star's website. It says that the sanitizer is good so long as the pH remains below 3. Since I'm keeping it in a spary bottle with distilled water it shouldn't ever get above 3.

Just after post the question I found the Tech Sheet on Five Star's website. It says that the sanitizer is good so long as the pH remains below 3. Since I'm keeping it in a spary bottle with distilled water it shouldn't ever get above 3.