Can you recommend a durable and easy-maintenance floor for a bathroom?

— Kathleen Schaeffer, Easton, PA

Answered by Paul Gleicher on June 12, 2009

We want to design a greywater system for bathrooms we're renovating. Can you help?

— Brian McDonald, Providence, RI

Answered by Jesse Terzi on April 23, 2009

Are there nontoxic alternatives to vinyl and lead sheeting for shower pans?

— Sheila Brody, Brooklyn, NY

Answered by Brad Hubbell on June 5, 2007