Replacing hot water cylinder

[hem852]

Hi,

I have to replace my hot water cylinder but wanted to check a few things before I embark on the task.

I have got the new cylinder and it seems fairly straightforward apart from the fact my current cylinder does not have a drain point (its a very old cylinder). How do I drain the current cylinder when there is no drain point?

Additionally the outlet on the top of the current cylinder is a 22mm copper elbow directly on top the cylinder whereas the new cylinder has an outlet for 28mm copper pipe. Is there a special fitting that goes onto the top of the new cylinder (I cant seem to find anything that fits it)? Is it ok to just add a couple of inches of 28mm copper pipe on to the outlet followed by an elbow and then a reducer to connect the new cylinder to the existing 22mm pipework?

Thanks in advance for your help/advice.

Regards.
John

 

[JPC]

yes your thoughts are fine...slight incline to air move out.

to drain, drain hot water via a open tap. drain hot cyclinder by undoing the top connection, insert a length of copper/plastic pipe to a couple of inches of the bottom, connect a hose to the other side...take the other side of the hose outside and suck baby, suck.....it will come

 

[namsag]

what do you mean about outlet is it a male or female thread

 

[hem852]

Its a male thread.