[rhcpfan4002]

The only place I can sanitize my keg, fill it with water, is the bathtub using the shower head...the joys of homebrewing in a small apartment. Anyways, I now have all these scuff marks in my porcelain (I believe it is porcelain. Just a regular white bathtub)  bathtub from the bottom of my corny keg. Is there something I can buy at Wal-Mart to get rid of these? I tried a few items and nothing seems to get rid of them.

[tumarkin]

Bar Keepers Friend..... non-abrasive cleanser.

[anje]

Haven't tested it yet (and I should -- I've got scuff marks in my tub too), but I'd start with baking soda paste or Soft Scrub and work up from there.

[kmccaf]

Haven't tested it yet (and I should -- I've got scuff marks in my tub too), but I'd start with baking soda paste or Soft Scrub and work up from there.

+1 I've used baking soda and soft scrub, and both work wonderfully for me.

[WDE97]

I use soft scrub.  I now put an old towel down in the tub and keep the kegs on that to avoid the scuffs completely.

[james]

If it is indeed porcelain then you can use a pumice stone on it to scrub just about anything off it if you don't want to use chemicals.  pumice is softer than porcelain so it won't damage it.

I bet BKF or soft scrub will work if you want to go the chemical route

[Kit B]

Mr. Clean magic eraser?
Don't use abrasives.
It's more than likely just a rubber mark that can be removed with something mild.

[Wort-H.O.G.]

renting??? is it that bad you are worried about getting dinged for it when you leave?

[rhcpfan4002]

Thanks Everybody, This is the first time Magic Erasers failed me. I tried the Baking Soda paste since I  had the ingredients lying around and it cleaned up my whole tub. WDE97 I'm going to steal your idea for the towel. Wort-h.o.g. it was bad. The bottom of my tub was almost pure black in some spots. I wasn't worried about getting dinged as much as getting annoyed explaining to everyone why my tub looked like someone wore black sole shoes to a basketball game in it.

[euge]

Perhaps a 30 gallon tote from walmart would help. Only costs $10 and fits inside a bathtub.

[Jimmy K]

I've seen Zud remove amazing stains. It's powdered, but is acid based rather than bleach based like Comet. It turned some fiberglass tanks with old, baked on brown and green stains bright white with ease.
 
http://www.truevalue.com/catalog/product.jsp?productId=5878&parentCategoryId=2166&categoryId=114&subCategoryId=1199&type=product&cid=gooshop&source=google_pla&9gtype=%7Bifsearch:search%7D%7Bifcontent:content%7D&9gkw=%7Bkeyword%7D&9gad=%7Bcreative%7D.1&9gpla=%7Bplacement%7D
 
Or what about some PBW?

[dean_palmer]

Get a faucet to garden hose adapter and make yourself a filler hose setup with a short length of garden hose so you can fill from the sink and not have to have the vessel actually in the sink. Get a tub to sit the items in so you are never abusing your sink or bathtub.