How do I keep my koi pond clean?
How do I keep my koi pond clean?
user
There are many possible approaches to keeping your koi pond clean, including the following:
assistant
Okay, salt water filtration. Any other kind of filtration?
user
3.  Filtration from the top of the pond can also be achieved by spraying the surface of the pond with a hose.  The hose can be turned on to run for a few hours each week, or daily.  Some ponds don’t have the right topography for the spray to go straight down, and there is a chance that the spraying will just create a mist that blows over the pond and doesn’t actually filter the water.  Just make sure you're putting enough water out there to cover the entire pond.
assistant
Will I still have to scrub the pool?
user
Yes.  There is always a chance that algae will grow in the shallow areas of the pool, despite the filters.  Regular checks and cleaning are still necessary.
assistant
About how often will i have to scrub?
user