The Cleaning Process:
Gather Supplies on A Durable Surface
ISO and salt are the absolute essentials. ISO is supercheap, so you may as well grab a large size to keep around the house. It might make you more likely to refresh your glass collection regularly if it's on-hand! Find Isopropyl Alcohol in the First Aid section. Cutting the top off a milk jug makes a great soaking container for hand-sized glass.
Learn from our mistakes -- if the alcohol is strong enough to sanitize, it’ll certainly leave a mark on your nice wooden table. Stick to a laundry room sink or bathtub with gentle water pressure near surfaces you can wipe right off.
We also save old toothbrushes (and the endless freebies from the dentists office) just for this occasion -- gentle electrics have an especially powerful effect.
The Rubbing Alcohol
Full-Sized Water Pipes --> Remove the slide and any other attachments. Pour ISO as high as you can into the pipe, without it overflowing from the open joint.
Hand Pipes and Bowl Slides -->Place glass in a container that's similar in size. Pour ISO until submerged.
Add a generous amount of salt. This is what really activates the cleaning mechanism to get tough, set stains moving. You’ll have to use your best judgement based on the size of your piece. Pour some in the main spout as well as the open joint. Soak bowl attachments with your other small glass pieces.
Shake & Swirl
Cover the water pipe joint with your thumb, and give it a solid shake. Get it looking like a dishwasher in there, taking care not get too rough with any fragile percs.
Hold your jug by the handle and swirl the alcohol around with the pieces--again using as much steady force as you can without risking breakage. This is a big reason why pipe enthusiasts prefer thick, sturdy glass with removable downstems.
Let it Sit
Allow the mixture to go to work against grime by letting it rest. Don’t leave it around particularly nosy pets. In general, the longer you can soak it the better. You might even take the time to dump it, and give it a second salty soak without the first layer of filth to overcome. This depends on how dirty your piece is and how strong your OCD-tendencies.
Rinse It Out
Use warm water to give it another shake and rinse. Get in there with a gentle cleaning tool (pipe cleaners and toothbrushes). Give it a spin in the joint if you’ve removed the downstem, and don’t forget to wash the exterior where spills and fingerprints like to accumulate. Use tools to get into carb holes and mouthpieces.
Let her dry off in the sun -- or on the kitchen counter. And, voila!Your piece will be crystal-clear as the day you two first fell in love.