Best tank connector for OLD galvanised steel tank?

[john999uk]

I might need to add a new tank connector to the existing cold water tank to feed a pumped shower( not power shower). I can't replace the old tank very easily as the loft hatch is very small, my shoulders only just fit.
So is any tank connector better than any other for the old galvanised tank or an I never going to manage to seal it?

Thanks for any help you can give.

 

[Ermintrude]

Tee in to the 22mm

 

[john999uk]

Tee in to the 22mm

Thanks for the reply.
Shower probably only 3-4lts/min but if I tee in to the 22mm is that not going to reduce flow? The 22mm currently just feeds the hot cylinder?

Thanks

 

[Ermintrude]

Oooh is tank big enough?

 

[Killy Bing]

Thanks for the reply.
Shower probably only 3-4lts/min but if I tee in to the 22mm is that not going to reduce flow? The 22mm currently just feeds the hot cylinder?

Thanks

it will be more than ample

 

[Best]

A very rusty tank is better not messed about with.
Another option, especially if the tank is to be replaced in the future, is to fit a pipe from the top of tank & down into the tank, about 3 inches from the bottom. Just put a valve on the pipe at floor level & clip it all well. Once it starts syphon, it will work & will do until the tank is replaced.

 

[john999uk]

Tank is about 2.5-3ft cube. I hope to god it doesn't need replacing in future. Thinking about it I would replace it with a 50gall coffin tank in the front loft and run 22 or 28 to the old tank position. I can just get a coffin tank in front loft. Have 1 there currently feeding a powered shower.

Should mention that the hot water cylinder does supply 5 holiday apartments. But all apartments run electric showers, so only sinks using hot water.

Thanks

 

[Ermintrude]

Undersized! And a holiday home. So it's got a Bylaws kit and is compliant with g3 ?

 

[TBServices]

Lolololololol

 

[john999uk]

Undersized! And a holiday home. So it's got a Bylaws kit and is compliant with g3 ?

g3: The installation has not changed since 2008. I am assuming that any changes need to comply with section G3 of building regs but I was not aware it was retrospective. Is it?

Coffin tank does have bylaw kit and it only feeds 1 powered shower (not power shower).

Cheers

 

[Ermintrude]

But your going to be modifying it? Yes no?

 

[john999uk]

Potentially modifying yes. I therefore assume that I have to comply with part G of building regs?

Looks like I will have to get a pro in, unless I can just connect new pumped shower (not power) to existing coffin tank that has bylaw kit etc.

 

[Ermintrude]

Coffin +1

 

[jtsplumbing]

You need to get rid of that old iron tank asap, seen to meny bottoms drop out of these, not counting the amount of stuff that is going into the water system, have you had a look inside the tank ??

 

[lame plumber]

you can get through a hatch means a rolled round tank can get through