First time fitting a cold water tank tomorrow. Some questions

[armyash]

Hi guys

Fitting a 25 cold water tank tomorrow, taking out an old metal tank which looks as thought it is insulated with slabs of straw/hay. She had a leak in the loft last week, i went to investigate, obvious signs of water in the loft, metal tank with lots of rust inside and out. Time for a new tank.

The tank has 2 22mm outlets coming out next to each other, the overflow and then the cold in.

Is there specific measurement where i need to drill the holes for the outlets? what about the inlet?

It might sound stupid to ask but i'd rather get it right first time than get sent back to re-do it.

Thanks

 

[Best]

Keep the outlets as far as possible away from each other. If it is a tank with segments (most are) then use one outlet to one segment. Don't drill them near corners. Keep the outlet for hot tank above the height of the cold outlet so that hot will stop flowing first in the event of a drained cwt.
Put the ball valve to opposite side of outlets if possible - to suit any possible shower pump MIs.
Drill ball valve hole to suit tank support plate and keep overflow about same level or slightly lower.
Use lever valves if you are replacing valves.

 

[turnpin]

As Best say's make sure it's well supported and fit the bye law kit that should be supplied with it......regards Turnpin

 

[armyash]

As Best say's make sure it's well supported and fit the bye law kit that should be supplied with it......regards Turnpin

Nice one, thanks for the replies. Byelaw kit has been ordered.

 

[Simon F]

if the hot water cylinder is old,
be careful with the cold feed pipe to it. easy to tear the tapping seal if its gone thin.

 

[plumben]

Dont forget about the base of the tank, well supported not chipboard extended out past the tank by 150mm all the way round
Part 2 ball valve not part 1
25mm minimum from the bottom of the tank for cold water and hot water outlet 25mm above cold water outlet
FOV needs to be 50mm down from top of tank
Then overflow 25mm lover than fov
And water level 25mm lower than overflow well I should say warning pipe
350mm clearance from top of tank for maintenance
Primary outlet should be opposite side from inlet and secondary away from primary outlet

 

[WaterTight]

I like doing them as most customers leave you alone when you're in the loft.

 

[ShaunCorbs]

I like doing them as most customers leave you alone when you're in the loft.

or forget about you had one turn the light off and close the loft hatch (ladder type)

 

[Rickster123]

or forget about you had one turn the light off and close the loft hatch (ladder type)

Are you sure she forgot about you? Maybe you were getting their ****??:8:

 

[ShaunCorbs]

Are you sure she forgot about you? Maybe you were getting in their ****??:8:

dont have a clue but found a talking Christmas tree

 

[plumben]

or forget about you had one turn the light off and close the loft hatch (ladder type)

If I was left in a loft with the light turned out and the hatch shut i'd jump straight threw the ceiling and be like remember me!!!

 

[ShaunCorbs]

If I was left in a loft with the light turned out and the hatch shut i'd jump straight threw the ceiling and be like remember me!!!

heres johnny

 

[REDSAW]

take a peice of ply, place on top of metal tank.
extend pipes then sit new tank on ply and plumb up.

they wont ask you to remove old tank into yard then.lol

 

[gassafe]

Put the overflow above the cold feed inlet & not below it

 

[stevetheplumber]

overflow should be 1 1/2 times inlet pipe diameter below fill valve so roughly an inch lower
fill valve should be opposite end to at least one of the outlets best to get push fit tank cons they never leak