Size of cold water storage tank for new shower?

[Baz500]

The water pressure in our bungalow is inadequate for a shower and so I would like to fit a Stuart Turner Showermate eco Pump (1.5 bar). The maximum flow is rated at 32 litres per min.
As I live alone, there is no problem with water being drawn from elsewhere in the building when I am using the shower.

The two questions I have concern the cold water tank in the loft.
1. What size would be adequate for this system?
2. Can I mate two or more smallish tanks together as the loft access is only 460 x 460mm, too small I think for a coffin tank. How would I plumb together 3 15-25 litre cold water tanks?

Thanks

Baz

 

[HERTS P&D]

Cut a larger loft hatch then fit a 50 gallon water tank.

Andy

 

[Baz500]

Cut a larger loft hatch then fit a 50 gallon water tank.

Andy

Unfortunately, subsequent extension work has made it impossible to increase the size of the loft access.

Would I actually need 50 gallons of cold water feed?

Baz

 

[Armo74]

Yes because it gives both hot and cold supply.

 

[JimCrow]

A 50 gal round flexible tank will go through that hatch,

http://www.tradingdepot.co.uk/DEF/product/!!TADTNKPC50!!/

 

[Baz500]

Just how flexible are these round tanks, as I do have limited space above hatch also

 

[JimCrow]

it will fold down enough to get through your hatch, someone above pulling and you below pushing.

if you have a problem getting it through, give the tank a wee warm up with a hair drier