I realise a different cleaning liquid ought to be used for each of these tasks. There are quite a few suggestions on-line, from distilled water with Fairy liquid, dilute white vinegar, coca-cola, dishwasher detergent + hot water, to citric acid, & more exciting options (kerosene, petrol, bleach!!!), & so on. Yeah, I'll skip the latter.
Given there's quite a bit of experience on here, I wondered what's been tried, and what worked out? I'm looking for DIY solutions. They sell the devices in Chiang Mai, but no liquid cleaner.
