Milton Sterilising Unit

[Doodler79]

I am wanting to use the Milton sterilising tablets, mainly to clean breast pump. Is it necessary to buy the proper unit, or could I just use Tupperware/big bucket for the sterilising solution? Also would the container need to have a lid/be sealed?
Thanks
Doodler 79

Hi, I just used a big Tupperware tub - as long as the things you're sterilising are covered they're ok. I used a plate to hold floaty things down in the water!