3 ms·
Water hardness isn't measured from 0-14. Those are pH testing strips (aquaself pH Teststreifen).
by falsedan 8y ago
Water hardness isn't measured from 0-14. Those are pH testing strips (aquaself pH Teststreifen).
- raverbashing 8y agoYeah, you're probably right. Most pH strips I've used have only 1 color, I guess you need 4 to measure across the whole range.