My condo board wants to do preventative sewer routing 3-4 times per year through my unit only. The plumbers have stated this means placing a large commercial router right in my living room and that sewage debris may fly or spray off the router and that the routing will leave my home smelling like sewage. Are there health risks involved with my home being unnecessarily exposed to sewage fumes four times a year? I have a five year old child. Also, can I use a light to light a candle or cigarette if my home has been exposed to sewage odors due to the sewer routing? Even if there are no inherent health risks, I am smart enough to know that odors are absorbed by soft surfaces and fabrics…meaning my furniture, bedding, curtains, etc. will be absorbing the sewage odor unnecessarily four times a year. Are there any documents or papers that I can provide my board that would prove this will damage my unit and belongings and/or pose a health risk?