Cleaning a water dispenser catch basin

A wet rag?

shite man, how long did you wait for mold to grow?

We had that happen on our last one. Nothing we did made the white go away, and we tried a lot of things.

make a soulution of water and white vinegar, start with 1:1, may need to be stronger. Let is soak, scrub with a toothbrush is necessary. Could also use something like an ice machine or coffee maker de-scale solution, but vinegar solution is where I would start.

once it starts it done for, even if you clean it all off its going to be an eaten up mess and turn nasty in a week again.

get the model number, go online, order a new tray and snap it in place, job done.

if you use dish soap regularly it neutralises the corrosive salts in the water to prevent the scale from starting so clean it at least once a week or once a month at a minimum

If anyone is interested I soaked it in vinegar for a while. Then I got a toothbrush and dipped it in lemon juice followed by baking soda. I scrubbed the tray and it came out pretty good.

Vinegar is best for hard water deposits.