Isopropyl alcohol in there for a day or so will melt.most of the residue
Get yourself an ashcatcher. It will change your life. You'll have to clean your rig way less
Everclear has always been my go to.
I'm working at a house where the homeowner's had a professional cleaning company come in and do some work. Dude that worked for them used oven cleaner on a plastic/acrylic shower surround to clean oil base paint and years of grime off. After he cleaned everything off he sprayed it all down with windex. It looked brand new when he was done.
I murdered a U.S. Bong about 45 years ago when I hit it with 70% isopropyl. It actually emitted a scream as the plastic developed a million tiny cracks.
Acrylic that has been heated does this when hit with alcohol. Don't believe me? Take some acrylic and hit it with a torch and use isopropyl alcohol on it.
While hot, or days afterward? The bong never got too hot to touch iirc.
I side with people saying alcohol and salt. It's the best thing I've found. Run some hot water through it first and follow up with some alcohol and salt, shake that through. This is pretty much all I use on my glass these days. I hit what I can with a scrubber to speed up the process.
I'm suggesting the bong was heat treated before you got it. Heat treated acrylic has a polished look. Also good rule of thumb is don't us alcohol on acrylic. I didn't mean while heated, just don't use alcohol.
I kept extract in silicone once. The extract hardened in a way that didn’t happen to me in glass (in under 10 years; I had a 10yo sample turn the upper half to hard varnish).
Ok thanks. I didn’t know that.
Damn that's even more sad than my saddest story.
Mine had a hair line crack where the bowl tube attached to the main body. It was like that for a year. Never leaked or got bigger. Until I dropped it. The crack happened when in tipped over on a marble table. I was super careful after that... Until the drop. I think I paid $130 for it.
