The role of this tube is to ensure that water leaking from the water heater bottom gets channeled out.
Tankless water heater leaking from bottom.
The drain valve is responsible for draining out the hot water from the water heater tank.
If you are not using a tankless gas water heater you need to monitor your t p valve.
Mostly leakage observes at the bottom and along the connections of the tankless water heaters.
A tankless leak is usually around 1gpm or so.
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Initially it seems very insignificant but if you ignore it may turn into catastrophic damage.
Much of it follows the piping to the wall where it soaks sheetrock ruins carpet and finds its way through the holes in the structure to spaces below and floors.
If your heater s valve is leaking notice where the water is seeping from.
First video here is a quick fix for my leaking navien tankless hot water heater.
The temperature pressure valve releases pressure when the water becomes too hot.
Water leaks from your water heater are a symptom of a much bigger problem in wait.
Basically it is anything that settles on the bottom of your water heater.
If it s coming from the nozzle which connects the valve and the heater you ll need to tighten it.
By following a routine m aintenance schedule sediment will be flushed from your tank helping to prevent future damage.
So if the tank holds up water the main purpose of the drain valve is to clear it out.
The leak may actually be at the top of the water heater and simply running down through the body of the heater before escaping at a lower level.
When a tankless water heater leaks the water runs out of the bottom of the unit.
So it works ideally for the maintenance of the drain.
Sediment build up within the tank is the most common cause of a tank breaking down and eventually leaking from the bottom.
Old water heaters leak from the bottom when their valve cannot function anymore and affect the floor underneath them.
However as time goes the leakage may turn out to be catastrophic if not taken seriously.
Doing so is easy with the help of a pipe wrench.
Give it a try for yours.
It may seem not a big deal at first.
Doing this makes the place safer preventing water outbreaks.
Mostly in case it happens tankless water heaters leak from the bottom or along with the connections.