Hooked on Hydronics Blog

Pumps are serious business in the world of commercial building.  Engineers spend vast numbers of hours reviewing usage requirements so that the correct pumps are specified, purchased and installed for building and system needs.  However, you may hear months, or even years, later that the building owner is experiencing problems with that same pump you painstakingly selected. 

Mechanical seals in HVAC pumps prevent water from escaping the casing (wet end) around the shaft penetration. For a mechanical seal, dirt is the enemy. So, the cleaner your system water, the longer the seal will last. But, when the seal leaks, it MUST be replaced. If you have not done this often, there are simple things that could sabotage what should be a relatively simple task. Below are nine tips from our experienced pump professionals that will help ensure your seal replacement is done right the first time: