Of course, there could be more than one type of problem. This bit of information is very important because it tells you that there is a problem with the system itself. If there is water flowing into the tundish, then you know that your pressure relief valve is leaking. Simply locate the tundish (often easier to do by locating the pressure relief valve and then following the line). Without the tundish in place, you would not be able to see any water flowing from the pressure relief valve to the overflow drain.Ĭhecking your tundish is actually very simple and requires no tools or even special training. It serves as an air gap and provides a visible window into the overflow system, as well. First, and most importantly, it serves to prevent any sort of cross contamination between an overflow pipe and a drain pipe. You’ll find it just off the pressure relieve valve and above the discharge piping.Ī tundish performs two principle tasks. It looks a bit like a plastic cup attached to piping on your cylinder. While it might sound like some sort of pan or dish that is placed under your water cylinder, a tundish is actually something else altogether. Knowing what a tundish is, what it does, and how to check it are important considerations for homeowners today.
![water heater overflow pipe water heater overflow pipe](https://i.pinimg.com/originals/90/2d/35/902d35a2996470b58de751670fbe8b0e.jpg)
One of the least understood pieces of your water cylinder is called the tundish. Your water cylinder’s operation is likely as little understood as how satellites work with GPS systems. However, if you’re like most people, you know only a little bit about the technology that allows this to happen.
![water heater overflow pipe water heater overflow pipe](https://www.howtolookatahouse.com/Blog/ewExternalFiles/TPRdischargeShared.jpg)
We’ve gone from having to manually heat water over an open fire and carrying it in buckets to being able to open the tap and enjoy immediate access to hot water for all our washing needs. Water heating technology has evolved a great deal over the last century or so.