The Oase Pondovac 4 makes vacuuming your pond convenient and can vacuum without interuptions thanks to the patented two-chamber system.
The Pondovac 4 is also ideal for vacuuming and scrubbing swimming pools.
The bottom of fish ponds eventually build up with decaying materials, leaves, uneaten food, fish wastes. Without proper cleaning it can lead to spikes in ammonia levels that very suddenly kill the inhabitants of the pond. You can prevent debris sinking to the bottom by installing a surface skimmer but once they are on the bottom decaying, a pond vacuum will make the job of cleaning much simpler.
You need to check the condition of the bottom of your pond and notice the smell of the pond. A pond should not smell bad, if it does then something is wrong.