Required
Flush Out

To minimize odor and avoid sediment buildup in the trapway, it is important to flush out your waterless urinal every two weeks using the following procedure:
Repeat the Daily Cleaning procedure.
Remove the used urinal ball and discard.
Using a small screwdriver or bent wire, carefully lift the strainer vertically from the drain. Clean the strainer and set it aside.
Quickly pour 1 gallon of water directly into the drain. Do not let the urinal overflow. This will purge the residual urine and sealing liquid.
Unscrew the spray nozzle from the cleaner bottle. Pour 1 ounce or 2 tablespoons of cleaner directly into the drain.
Allow the cleaner to stand for 5 to 10 minutes.
Pour 2 gallons of water directly into the drain as quickly as possible. Do not let the urinal overflow. Pour 3 ounce or approximately ⅓ cup of sealing liquid directly into the drain. Reinstall the strainer. Set a fresh urinal ball in the urinal.

Waterless Urinals