There are three different types of pool filters
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pH (potential of hydrogen) is a scale of acidity from 0 to 14. <7 = acidic 7 = neutral >7 = alkaline (basic)  |
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There are three different types of pool filters
0 Comments
pH (potential of hydrogen) is a scale of acidity from 0 to 14. <7 = acidic 7 = neutral >7 = alkaline (basic) |