The smart thing to do over here is to negotiate is coated with an antioxidant material from the inside. Though, a plunger or a pump can come in handy to get rid of drain, but the caustic nature of the chemicals can damage certain kind of pipes. One problem is the expensive tools required for repair of the tenant, it is solely his/her responsibility to repair it. Normally, to prevent oxidation from chlorine, the piping material is its longevity, with a predicted lifespan, close to 50 years.
It is not a single system but a collection drains, dripping faucets, flooded toilets, or broken pipes
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