7 On Your Side's Michael Finney warns of surprising risks at local pools

SAN FRANCISCO (KGO) -- Summer's here and to cool off, many people head to the local pool. You're much safer swimming with a lifeguard present, but Consumer Reports reveals the science behind a surprising risk that may be lurking there.

Watch the video player above to find out what the risk might be.

All Consumer Reports material Copyright 2017 Consumer Reports, Inc. ALL RIGHTS RESERVED. Consumer Reports is a not-for-profit organization which accepts no advertising. It has no commercial relationship with any advertiser or sponsor on this site. For more information visit consumer.org.
Copyright © 2019 KGO-TV. All Rights Reserved.