The importance of gaskets is undeniable. It keeps two pieces of metal or PVC from rubbing together or springing an untimely leak. Gaskets provide the cushion so that things do not move around. They also prevent oil, water, or other liquids from free flowing out of a joint area in piping. When it comes to your homes water lines, this is vitally important. Therefore, you need to make sure your water line gaskets are PUB approved or leave them alone.
Gaskets do work well for creating a seal. The fact that the Public Utilities Board approves them means that they create a better seal. It also shows that those gaskets are made from materials that are environmentally friendly and will not make you sick, even after many years of use. This is very important in water lines that provide you with the water you will bathe, shower, cook, and drink.
Most commonly, EPDM gaskets are the preferred when the gaskets are expected to handle average water supplies. However, other materials can be used in some situations. A commercial building that is expected to use heavier water may need a different type of gasket than what a household may use. This also means that it may require a larger one than your home.
Other considerations may include the average temperature of water flowing through the pipes, chemical compatibilities, and how much pressure is expected. If you are unsure what gasket you need then you should know that it honestly depends on the lines and application mostly.
Some gaskets are small and round, others are larger, and still others may have bolt holes in them that make it easier to secure them. The size of the pipe and the size of the joint should be your guides. Also if there are bolts or hooks for the gasket to attach to, you will also need to choose one that fits well.
If you are ever unsure of what you truly need, then it is okay to ask for help. You can hire a professional who deals with gaskets and potable water all day long or you can simply ask the experts. Either way, getting one that is PUB approved should be the most important thing you ask about.