I tried this and the soap scum came right off. I'm completely impressed and no coughing from all the chemicals in cleaners. Never buying shower cleaner again. 1 cup each - warm white vinegar (microwave 2 min) + 1c Original Dawn. Spray, leave for 15 min, rinse.
Miracle Cleaner Into a spray bottle mix: 2 oz. Dawn Dishwashing liquid 4 oz. Lemon Juice 8 oz. White Vinegar 10 oz. Water This is powerful stuff! If your shower has a bad build-up of soap scum and crud it may take a time or two to get that shine. I've used this to clean my OVEN.....my STOVE grates and the Glass in the showers....This stuff is AWESOME!!
Clean your fiberglass tub and shower the easy way. Be sure to get the blue can! Takes off soap scum and hard water deposits. Spray on and leave for at least 30 minutes. I then used a soft sponge scrubbie and wiped and rinsed and wiped and rinsed. Will follow up with car wax on the walls. BLUE CAN!!!