Gross.

According to a new survey, reported by WTOP.com, one of five people in a swimming pool urinates in it.   

The Water Quality and Health Council conducted the survey, which also found that seven in 10 people don’t shower before entering the pool, bringing outside germs with them into the pool.

While chlorine does kill germs, it should not be a cure-all for bathing.

The Centers for Disease control website has pool and hot tub safety tips, including instructions for using pool test strips for pH balance at home.

Here's a list of pools in our area:

• Wakefield Swimming Pool (indoor) 4901 S Chesterfield Road, Arlington, 703-578-3063
• Washington-Lee Swimming Pool (indoor) 1301 N. Stafford St., Arlington, 703-228-6262
• Yorktown Swimming Pool (indoor) 5200 Yorktown Blvd., Arlington,  703-228-8754
• Upton Hill Pool (outdoor) 6060 Wilson Blvd., Arlington, 703-534-3437