Former Environment Agency officer Dave Throup said it was "really concerning that this amount of rain has resulted in such extreme river levels".
"It's not healthy at all for the kids that we have."Ms Gallacher said: "My concerns are that people are walking through it and it's a busy road for cars, so they're getting splashed by other people's sewage.
"People are bringing it in in their shoes. They're walking their dogs through it. They're driving their cars through it."It's a health hazard. Someone is going to be seriously ill if it's not addressed properly."We need a resolution to get it fixed once and for all, or we're literally going to be in a mess again and again."
A spokesperson for Severn Trent Water said: "We're sorry for the disruption that's been caused on Warwick Road, as we know how unpleasant any flooding can be."On this and previous visits, we have found the issue to have been caused by a blockage formed by items including wet wipes which had been flushed down the toilet."
The company advised people to bin anything that was not toilet paper, and avoid washing fats, oils and grease down the sink to prevent blockages from forming.
Ms Gallacher said she welcomed the company acknowledging there was a problem, but added a long-term resolution was needed before the drains flooded again.Paying tribute, his family said he often initially came across as shy but once people knew him, it was "easy to see how loving and caring he was, and how funny".
"Jacob had a wonderful group of friends who have given us tremendous support during this difficult time," they said in a statement."We are meeting friends of his we didn't know he had, who are all telling us stories about how much of an incredible friend he was."
Two others - Simon Evans, 18, and 17-year-old Jenson Bridges - also died in the crash, while another teenager, who has not been named, suffered life-changing injuries.Police have repeated an appeal for information surrounding the circumstances of the crash.