What causes grout around shower tiles to crack?

— Pam Chippewa Falls, WI

Answered by Scott Grieves, CPM, CEA on March 6, 2013

Are incinerating toilets really an option?

— Bonnie Tyler Beaverton, OR

Answered by Elizabeth DiSalvo on January 28, 2013

Can I modify my old toilet to be more water efficient?

— Pat Monahan Federal Way, WA

Answered by Scott Grieves, CPM, CEA on December 18, 2012

What types of showers are greenest? We're getting ready to redo the master bathroom.

— Linda J Heuser North Granby, CT

Answered by Erik Henry on October 29, 2012