You water garden is a home to fish, plants, and to the animals that visit your water garden that you do not even see. Caring for your water garden is just like caring for your own house, sometimes you need to do a little bit of work on it to keep it up in running order. Your water garden that was well planned away from trees, buildings and to hold the water is going to last years and years with out heavy maintenance needed.
What type of chores are you most often going to be faced with? Cleaning debris from the pond, dividing plants that are growing a little large, and changing filters in the filtration system will be needed. If you are careful in planning and taking care of your water garden, you should not have to drain or remove water from the water garden for years. more of this pond water quality article here