Tank water drain valve

by bill wuttke
(wisbech cambs england)

Hi, when i open the water drain on my 150l tank it does not always rush with air/water can i remove the whole valve without it leaking bill.
____________________
Bill says...

Howdy, Bill.

You say that when you open the tank drain valve that water doesn't always rush out. Is there water to rush out?

Certainly, if the tank has air in it, when you open the drain valve, compressed air should blow out the drain valve, and carry any water there along with it.

Can you remove the drain valve without it leaking? Does this mean that you might damage it when you remove it?

The tank drain valve is normally threaded into a tank fitting, and powerful sealant is often used to help ensure that the threads don't leak. So, it is possible that you will damage it during removal.

Replacing the tank drain valve is pretty easy if you have some fundamental plumbing experience. One thing that might be useful is to thread and elbow into where the tank drain used to be, add some tube so that it extends to the side of the tank, and add a shut off valve there. Then draining your tank becomes very easy.

Good luck.

Cheers,

Bill