We have a fiberglass tub with jets (used it twice-what a waste) but the easiest way I've found to clean it is to fill it with hot water and add 1 cup powdered dishwasher soap, let it set for an hour or so then drain and rinse a couple of times. To keep soap scum from building on it and glass doors, wipe them down with a fabric softener sheet. Been doing it this way for 7 yrs since installed and it looks like new. No bending, scouring, etc.--I like easy! I do this to the whole surround-it's used daily cause the shower is there too.