Method One: Hand-Fill and Drain Later
This method is best for those who have a working drain and a grey water tank that is less than ¾ full. If your p-trap is leaking, do not use this method. However, if there are no leaks when your pump is turned off and your grey water drains into the tank properly (and your tank is capped with the release valve closed), you can use this method.
Since your RV sink pump will be turned off, you must be either boondocking or you have an issue when the pump is turned on. This means you will need a couple gallons of water. One is for a rinse bucket and the other is for your washing water. You can either buy this water or if you are at an RV park (or other location) with access to water, you can fill up a jug or bucket accordingly.
Plug your drain and fill one side of your turned off RV sink with water. Add antibacterial dish soap and swish it around to make it soapy. Add dishes and wash them. Place them in the empty side of the sink and drain the soapy side. If you have a heat source available, you can boil the water first for added disinfecting. Use the rinse jug or bucket to rinse the dishes over the unplugged side of the sink. Again, only do this if your tank can hold both the rinse water, as well as the soapy water.
Dry the dishes inside the clean sink, on a dry towel, or in a drying rack. Once you have access to a sewer drain hookup, drain your grey water tank. If you can’t get access to a hookup and you need to drain it, drain it into a bucket, safely handle/store it, and drain the bucket as soon as there is a safe place to do so.
Method Two: Hand-Fill and Hand Drain
This method is best used if your RV sink drains well, but the tank is full. Follow the same instructions as above, except don’t drain the water into the sink. Both sides should be plugged. When emptying is needed, siphon the water out with a jug and pour it into a bucket. Follow proper safety methods for disposing of the grey water in the bucket. If there is any residue left in the sink that cannot be siphoned, use a towel to soak it up and dry and clean the towel as soon as possible.
Method Three: Cover the Drain Hole and Use Bins in the Basins
This method is basically the same as method two, except you’re going to use bins to do the washing into so that as little as possible gets into the actual RV sink. This is best for when you either don’t want to siphon out water or don't want to risk getting too much water into the actual sink.
Other Possible Options
- Use the bathroom sink at a rest stop
- Use the bathroom sink at a camp ground
- Borrow a friend’s sink
- Use disposable dishes so you don’t need to wash dishes