PondDoc

Replacement Lamps for PondMaster Submersible Ultraviolet Water Clarifiers

Just about once a season we should replace the UV lamp in our water clarifiers.  The reason for this is that, even if the lamp isn't blown, the more you run the unit, the more the lamp "runs down" and loses its strength.  Some people go ahead and change the lamp when they open their ponds for the new season but others wait until the unit seems not to be doing a good job of clearing the water any longer.  

The PondMaster replacement lamps are 9000 hour lamps and come in three sizes: 10, 20 and 40 watt.  You can only use the wattage lamp that your unit is.  For example, a 20 watt lamp will not work in a 10 watt unit.