Commercial plumbing repair. I repaired one toilet in the security locker room. The toilet was leaking in the vacuum breaker area. Installed a complete Sloan rebuild kit in the toilet. Someone installed a 1.5 gallon flush in this toilet when it should be a 3.5 gallon flush kit, that is what I installed. In the second building men's room I found both toilets, urinal and sinks have low water pressure. The toilets and urinal I flushed the lines out and replaced Sloan rebuild kits in these fixtures. They all flush well now. The two lavatory faucets I blew out at stops. The faucets have good water pressure now..