Rod out all floor drains and systems in areas of work back to the nearest manhole. Video when history of flooding / slow drainage / associated structural damage has been reported by users / staff. Video shall include report, digital copy of footage and layout with sizes of piping televised on current floor plan / site plan. This should be done prior to the design of the system, then after construction completion. This is part of EOR’s scope to complete prior to design as a reimbursable expense.
If video shows issues causing improper drainage of systems. Repairs or modifications may be required to remedy the situation, including piping replacement or modifications of the system to maintain proper slope and flow through the system.