Storm water filter are a more cost efficient means of clearing water than alternate oil separators. A University of California study found that a stormwater filter or catch basin insert could strain out close to 100 percent of fats, grease and oils which pass through water. The same study found that filters also caught more than 80 percent of lead and more than 50 percent of copper. This is good news, since groundwater pollution is more dangerous than surface pollution because it is filtered through aquifers. Domestic water sewage is 99.9 percent pure water, with only 0.1 percent pollutants. This can be the difference that a stormwater drainage filter makes.
But proper stormwater management and stormwater treatment is necessary. If stormwater filters can prevent microscopic pollutants, it can also prevent the macroscopic pollutants. Macroscopic pollutants are a fancy term for trash, also called floatables. A stormwater drainage system can be outfitted with such a mechanical system as a drop inlet. It may seem simple, but in reality it is quite complex. It lowers water through a box or pipe structure and prevents pollution.
It is for this reason that these devices will probably remain popular, even as technology seems to grow more complex. This is because sometimes the simplest solution, like a stormwater drainage filter, is the best one, particularly for someone who has to work on a budget. The most effective and the most affordable method for preventing stormwater drainage pollution is available. And it will be for a long time to come.