Those walk in tubs are a hard no for me. Are you aware that you have to stay in the tub during the fill and the drain cycle?

A multi-purpose steam cleaner can make the accessible hard surfaces, seams, and areas around the jets much easier to maintain without constant scrubbing. I’d still follow TubToday’s instructions for cleaning inside the jet system, since steam only cleans the surfaces it can reach. This video explains where steam cleaning works well, where it can cause damage, and includes a link to the steam cleaner in the description: https://youtu.be/vlquermvBXY