Instead of trying to force fit a product not really intended for a shower wall maybe you would want to consider installing the molded fiberglass one-piece type tub / shower enclosure in place of your existing installation. These pretty much eliminate any need for grout joints, are easy to clean and can look surprisingly nice. (My house has three of them, two showers and a tub, and whilst they came with the house when I purchased it I am quite happy with them).

    

Is grout required when installing luxury vinyl tile flooring?
My girlfriend and I are moving to NYC. She is self employed and comparable health insurance in NY will cost her 2x as much as in Texas, where we are now. If we register as domestic partners it seems she can use my company health insurance. What are the pros and cons of forming a domestic partnership? Are there any tax implications, at the city, state, or federal level?
