Pond still losing water

You are pulling your hair out trying to figure out why your pond is still losing water.  Do you have a fountain in the pond?  If so, make sure the fountain is not too close to the edge and water is splashing out.  Check your waterfall as well. If water is splashing on the rocks near the edge of the waterfall, it is splashing out.  Falling water must have an area twice as wide as the water is high for the water to stay contained. So if your waterfall or fountain is pumping water 2 feet above the pond, the pond must have 4' of surface for it to fall into.  
One more thing:  If you have a fountain with some sort of nozzle or a spitter that sends water far in the air, the wind can blow the water out of the pond.  Watch your pond water level when the wind is blowing. You might want to turn off your pump if it's windy.


The holes in a nozzle can get clogged up and pretty soon you have one thin stream of water shooting out. It is hard to see because it is so thin.  Check it. You may wish to remove the nozzle completely.   Or clean it lots and lots. With a toothpick. And a brush. In the water. With your boots on.  Frustrating.

Medium sized pumps

Medium sized pumps are normally used for spitters or fountains

The head will usually be from 300 gph to 660 gph, with the larger one used to get the water higher or stronger. Be careful with spitters and fountains because if the water shoots too far in the air, it can splash out of the pond and soon you have pumped your pond dry.

For medium sized pumps, I like the Little Giant 350 gph

Just be sure to keep the impeller clean on smaller pumps for longer life. They usually need to be cleaned once a month if you feed your fish.