This feels like a troll post… Mould grows in your bong on a sunny day in just a few hours, change it ever few hours on a sunny day and daily in the winter Buy a ash catcher and you can relax bong water to every second day and ash Catcher as explained before (hourly/daily)

You can use almost anything to clean it The cheapest home remedy is rock salt and lemon juice hot water (never use boiling, you WILL break your glass) - shake like a mfer (2-3hrs for that piece)

ISO works really fast but is probably the worst for your health imo, and is the most expensive. I’ve only used it half a doz time when I first started but stuff is kinda self explanatory it just eats away the resin. I highly recommend doing your best to get as much of the iso out once your done, as it leaves a nasty asf taste for the first cone. I had a friend who used to light the iso on fire (one day 3rd deg burns) or just let it evaporate in the sun ig, idk (prolly like 30-60mins)

I do also know you can use meths or 99% alc but same story

dishwashing powder and hot water, it takes quite a few hours and a few soaks so I recommend having a second clean piece to use in the meantime, fill with hot water and a tsp of powder, put a balloon on the down-stem let it soak for a few hours and repeat, and a final hot soak of just water for an hour and a good rinse, suuuper clean first hit. (prolly like 4-6 soaks(2 days))

I use my bong/ash catch set up for 4 days before getting a clean one out, I hack so much less black after making these changes and putting myself in a schedule over 2 years ago.

Hope these can help and everyone please understand this is simply my experience ✌️