It’s time to get the water features cleaned up and running for the new growing season. I know I send this out every year but just in case you need a reminder, here is the routine I use.
If you have a fountain, bubbling boulder or bubbling stump, clean the leaves out as best you can, scrub the fountain if needed, refill with water, and install the pump underneath. If the water looks dirty, pump the water off into the lawn, rinse, and refill. Add a little chemical to the water to prevent algae build up.
The Annual Pond Clean-Out
The annual clean-out is the only “major” pond maintenance chore required by our water garden. Considering the many hours of enjoyment our pond and waterfall provide throughout the year, this time of easy paced work is well worth the effort.
The clean-out should be performed before the water temperature gets above 55 deg. F – the temperature at which the beneficial bacteria begin to colonize. You don’t want to disrupt the natural balance.
Using a sump pump or the pond pump surrounded by protective screen (to restrict the fish), pump out much of the water -use as long a pipe as possible and direct the water to lawns, shrubs or other areas that would benefit from a nutrient-rich bath.
Before the pond level has lowered to twelve inches or so, fill two or three “holding tanks” (I use large plastic tubs) with the existing pond water and carefully net your fish into them. The fish are weak after a long winter, so the less stress they endure, the better – they may try to jump out of the holding tanks, so cover loosely with a lid on angle or other object. Limit the time in the holding tank to just a few hours and put a small bubbler in with them if the fish are large.
After removing most of the water, spray down the rocks with a pressure washer or garden hose and spray nozzle. Start washing from the top down, and run the pump to remove the dirty water. Also remove any leaves or debris in the pond. Washing the rock should take only a half hour or so.
Now is a great time to re-pot your aquatic plants. Place the water lilies deep in the pond as most of them prefer 1-2′ of water over their roots. Be sure to put a lot of aquatic plants in your pond and stream bed to help keep the water clean.
Remove the filter media and lava rock from the skimmer and biofalls, and hose it thoroughly…again about a half hour’s work. Clean out the skimmer box and any remaining debris at the bottom of the pond.
Now hook up your pump, reinstall the filter media and start filling your pond. If you have city tap water, you will need to add dechlorinator according to directions…fish will not survive in chlorinated water.
Finally, float your holding tanks and fish in the new pond water for 30 minutes to acclimate them to the temperature change. Then free your fish into the pond.
That’s it – not a bad job at all. This is a very minor price to pay for what we consider to be the best improvement we’ve ever made to our outdoor environment.