First and foremost, it’s important to note that jetted tubs should always be filled with clean, clear water or water-soluble products only, and bathing products such as salts should be avoided, as they can cause corrosion. Other bath products that are not water-soluble will leave a residue in your tub's plumbing or air lines, creating a place for biofilm to accumulate. If you have used these items in the past, it is essential to clean and maintain your tub's plumbing lines. This Jetta Blog article will walk you through everything you need to know to keep your tub sparkling clean.