Is changing a cold water tank a diy job?

[Mrxman]

On Q1, a bit higher than 5 cm is fine as long as the connector sits on a flat part of the tank wall. If the hole lands on the curve the washer will not seal properly and it will weep. On Q2, yes, cut the pipe back and remake the joint with a compression coupler, just make sure the cut is square and the pipe end is clean. Once it is full, leave it a while and run the back of your hand around the connector to feel for any dampness before you box it in.

Great, thanks for this.

 

[Justin Passing]

Loo paper is great for looking for leaks. Best are coloured ones, but they seem to have disappeared. Granny's was purple, remember?

 

[Mrxman]

Loo paper is great for looking for leaks. Best are coloured ones, but they seem to have disappeared. Granny's was purple, remember?

Thanks. I'll dig granny's purple stuff out

 

[Mrxman]

One more question if you don't mind.

This is what the current pipes look like. They're positioned at 4 cm from bottom and on new tank I'd say they need to be around 5 or 6 cm from bottom to avoid the curve.

My original plan was to cut the existing 22 mm pipe at front back, add plastic coupler plus pex pipe and bend it 2 cm upwards but realised it might be too stiff to bend over the 12 cm length. I could cut it further back which will give me about 20 cm but may still be too difficult to bend.

Any thoughts on how to do this without jumping through too many hoops?

Many thanks

 

[mattylad]

Biggest question is, can you get the new tank up in the loft?

 

[dilalio]

might be too stiff to bend

And that is why a plumber exists!
To pipe things up, without resorting to flexis or plastic..

 

[dilalio]

without jumping through too many hoops?

So... Shortcutting the learning curve then!
That is akin to me being able to play the guitar how I want to, without the aggro and frustration of practice and repetition to make progress.

 

[Mrxman]

Biggest question is, can you get the new tank up in the loft?

It’s already there. Luckily our loft hatch is a decent size

 

[Mrxman]

And that is why a plumber exists!
To pipe things up, without resorting to flexis or plastic..

So... Shortcutting the learning curve then!
That is akin to me being able to play the guitar how I want to, without the aggro and frustration of practice and repetition to make progress.

Fair enough. Although I am not trying to short cut a learning curve.
The plan is to change to a combi boiler in 4-5 years but since we’ve just moved in and the vaillant boiler is still in good condition I am trying not to spend more than I have to (although I will hire a plumber if necessary).
The existing tank/cistern doesn’t have a lid and the circular shape has become irregular which made me think it could be unsafe to try and squeeze a new lid onto a wonky shape. Hence new tank.

Anyway, any thoughts or ideas appreciated and as I said, hiring a plumber could be an option