Q. We installed a 10,000-gallon fiberglass pool in our back yard in 1999. Within a month or two, we began seeing blotchy, grayish casts on the pool walls and bottom. After talking to several people at ...

Q: How should I clean the slate in front of my house without damaging the mortar or grout? A: Marble and limestone are in one big group of natural stones, those made up mostly of calcium carbonate.

The first step is to identify the problem. Stains in a swimming pool can be caused by metals in the water or by algae, and the best clue to the source of the problem is the colour of the stain. Almost ...

Whether it’s the salad dressing splattering your shirt or someone else’s glass of red wine hitting your beige couch, stains are inevitable. Before you say goodbye to your favorite piece of clothing or ...