Cleaning gunk from the river

[FreeRangeAsparagus]

Once you have let it soak in whatever substance you decide on using, put some rice into the bottle and shake it aggressively for about 5-10 minutes. Rice will get to almost every spot inside if you use enough.

Thank you! Cheap, easy, definitely trying this.

 

[nranderson]

Has anyone used denture cleaner? I have had some great results on certain crud. Worth a try!

 

[Van]

Perhaps salt and alcohol. Soak it.