Many people love the comfort and feel of a waterbed. But owners should be aware that mould and algae can grow inside if the water is not treated with a conditioner every six months. Mold and algae in untreated water coat the inside of the mattress and can break down the inner wall. Making your own natural waterbed conditioner can save you some money.
Set the funnel in the top of the quart jar.
Pour the sodium thiosulphate and distilled water into the jar. Put the lid on securely so you can shake the jar to mix the waterbed conditioner without spilling it.
Carefully label the bottle with the marker so no one will accidentally drink it. Add information about how much of the solution to put in your waterbed too, since it will be six months before you need it again.
To use the waterbed conditioner add one cup for every hundred gallons of water your bed holds. Most waterbeds hold between 160 and 200 gallons of water, so between 1 1/2 and 2 cups of conditioner should be used--but check the specifications for your mattress. Super single beds need less conditioner than king-size mattresses.
This could be mixed in a one-liter pop bottle but it is best to avoid putting anything toxic in a container a child might think is a drink bottle. Sodium thiosulphate is available through pool chemical suppliers. It is also used as an aquarium dechlorinator and for pond water treatment.