Stop drains - do not use stoppers
Recently, a stop occurred in a drain pipe in port 27. Our on-site stop contractor contractor was able to find that the stop was due to a clump of plug solvers that someone was flushing down.
It is absolutely forbidden to use plug solvents in the toilet, sink or kitchen drain. Only water, paper and whatever comes out of the body can be flushed down. In addition to the cost of cleaning the stop, you run the risk of damage to the sewer pipes, which can cost a lot more.