Perhaps one of the reasons why this years group has less mucky water than last year is because this year we have a plant which acts as a filter and keeps the water cleaner for longer than without any plant. Another reason why this year the water is less mucky is because more people changed their water regurlary this year than what they did last year as shown by the data collected.
Perhaps one of the reasons why this years group has less mucky water than last year is because this year we have a plant which acts as a filter and keeps the water cleaner for longer than without any plant. Another reason why this year the water is less mucky is because more people changed their water regurlary this year than what they did last year as shown by the data collected.
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