Many pond owners have found pond water clarifiers to be most helpful in clearing up water.
Cloudy water can be cleared by a variety of different pond water clarifiers. One common method of these clarifiers is to clump small particles of dirt, bacteria, etc. together (flocculates). Once the clumps are large enough, you can vacuum them out, or they can be filtered out.
Other pond water clarifiers use beneficial bacteria to break down algae and increase dissolved oxygen.
Most pondkeepers know that the best way to ensure clear pond water is with an ultraviolet sterilizer. Some often overlooked factors are what to do when the UV light is not doing the job anymore. Usually, this is a simple as an old lamp. Depending on the brand, UV lamps should generally be replaced about every 12-15 months of use.
