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A septic tank of 7 m3 in volume serves for 5 people. If the rate of accumulation of sludge is 70 litres per capita per year and sludge is removed when it occupies 50% of its volume, what is the cleaning interval of septic tank
🗓 Dec 14, 2021
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Mia
🌐 India
Thanks for the answer
votes
Alexandra
🌐 India
Students helping students, nice idea
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