Soak the included sponge with water, then squeeze excess water out. [photo]

This sponge is in constant contact with leaded solder. Any water it comes in contact with is considered dangerously CONTAMINATED and should be handled accordingly. Ensure that there is no possibility of an individual consuming or otherwise coming in contact with the same water source as the sponge has.

Example of POOR procedure: dunking the sponge in a glass of water, then leaving the water out for an individual to accidentally drink.

Example of SAFE procedure: rinsing the sponge in a utility sink marked as unsuitable for drinking, in addition to ensuring that the sink has completely drained (drain disposal is okay for this quantity of lead).