It does what it claims.

[Denvermike]

I tried Zep Commercial Power Tub & Tile Cleaner. It is the first product that REALLY does what it claims. My kitchen sink is double cast iron/ porcelain model that is about 70 years old. It did some stains that would just not come out even with bleach. My daughter told me about this Zep product. Not cheap, about $7.50 for a Quart bottle. READ and follow the label and warnings! Very good stuff.
Mike

 

[RedFish]

I bought our 1st gallon of Zep at Lowes 3 years ago to clean vinyl fencing. I had never seen it on store shelves but I do see those spray bottles now. Simply spray it on, hose it off. Wife uses it in baths too so we're into the 3rd gallon. Good stuff

 

[diymirage]

is it available for sale in commiefornia?
if not, its probably good

 

[Mopar Tim]

is it available for sale in commiefornia?
if not, its probably good

You can get Zep here.

 

[Princess Valiant]

it is good stuff and smells better than a lot of other cleaners out there