大温哥华（B.C.）水区进行了初步试验，以确定使用直接过滤处理浊水的可行性。由于自然高浊度的发作往往持续时间较短，因此调查中包括浊度峰值。结果表明，采用深层单介质过滤器时，直接过滤可以成功地处理浊水；不接受较浅的双介质过滤器。即使原水浊度很高，浊度和生产目标也能实现。确定合适的助滤剂剂量是实现性能目标的关键因素。 包括17个参考文献、表格、图表。

Pilot-testing was undertaken by the Greater Vancouver (B.C.) Water District to determine the feasibility of using direct filtration for treating turbid water. Because episodes of natural high turbidity tended to be of short duration, turbidity spiking was included in the investigation. Results showed that turbid water could be treated successfully with direct filtration when a deep-bed monomedium filter was used; a shallower dual-media filter was not acceptable. Even with a high-turbidity raw water, turbidity and production goals were met. Determining the appropriate dosage of filter aid was a key factor in meeting the performance goals. Includes 17 references, tables, figures.