What happens if the media is too coarse?

If the media used in a filtration system is too coarse, it primarily fails to effectively remove small turbidity. Coarse media has larger void spaces, which allows smaller particles to pass through without being captured. As a result, the filtration efficiency is compromised, leading to higher levels of turbidity in the effluent. Ideally, the filtration media needs to be adequately sized to trap particles of various sizes, including those that are small, which are typically responsible for turbidity in water.

While some options might suggest other issues related to filtration performance, the primary concern with coarse media is its inability to effectively address small turbidity levels, which could lead to unsatisfactory water quality.