Regular water change
Feed and plant remains and metabolic products pollute the aquarium water. Since aquarium filters can’t completely remove these substances from the water a regular partial water change needs to be carried out. The JBL IN OUT facilitates the water change and provides clean water without the need of dragging buckets.
Just connect the water jet pump with the water tap. Connect the long hose with the ball joint to the water jet pump. Connect the other end of the long hose with the loosely enclosed hose stopcock and the short hose piece at the gravel cleaner. Hang the gravel cleaner into the water. Open the stopcock at the water jet pump and the stopcock of the hose. Fully open the water tap. The water flowing by sucks in the aquarium water. Clean the aquarium bottom with the gravel cleaner during the siphoning procedure. To refill the aquarium close the stopcock at the water jet pump and let fresh water run into the aquarium.
By shutting the stopcock of the hose you can conveniently finish the water change. An accidental sucking in of fish or plants is impossible due to the built-in protective sieve inside the gravel cleaner.