New attic water storage tank or just move existing ?

Fine Cheers

Typical detached 2 storey 4 bed timber framed property with trussed hipped roof all around. Reasonable head room around centre of attic which I want to fit out for storage. Water tank is right in the middle so would like to move. House is 20 years old and existing tank is circa 150 litres or thereabouts (450mm x 450mm x 1200mm). Standard indirect system - gas central heating fed from attic tank.
Reading up on the regs it says a 4 bed house should have 340 litres storage :eek: which I am shocked to see we are so undersized. The main reason for increasing was to avoid power mixer shower running out - does not happen too often but as kids get older, they are showering every morning = 4 adults. We also have an electric shower in separate en-suite for the lady of the house also used daily.
Anyway, just wondering on best ways to increase storage capacity:
Relocate existing tank and provide a second one - would one feed the other ?
Would it be an option for one tank to feed power shower and a new one for rest (or vica versa)
Scrap existing and just get a new single tank - hard to get 340 litres tank that will fit through stira (500mm wide ope).
I see some enclosed 'coffin' tanks with lids - look good.
Are drip trays necessary or just a desirable optional extra ?
So are all new 4 beds getting 340 litre storage ??

zg3409

DIY KING wrote: »

Typical detached 2 storey 4 bed timber framed property with trussed hipped roof all around. Reasonable head room around centre of attic which I want to fit out for storage. Water tank is right in the middle so would like to move. House is 20 years old and existing tank is circa 150 litres or thereabouts (450mm x 450mm x 1200mm). Standard indirect system - gas central heating fed from attic tank.
Reading up on the regs it says a 4 bed house should have 340 litres storage :eek: which I am shocked to see we are so undersized. The main reason for increasing was to avoid power mixer shower running out - does not happen too often but as kids get older, they are showering every morning = 4 adults. We also have an electric shower in separate en-suite for the lady of the house also used daily.
Anyway, just wondering on best ways to increase storage capacity:
Relocate existing tank and provide a second one - would one feed the other ?
Would it be an option for one tank to feed power shower and a new one for rest (or vica versa)
Scrap existing and just get a new single tank - hard to get 340 litres tank that will fit through stira (500mm wide ope).
I see some enclosed 'coffin' tanks with lids - look good.
Are drip trays necessary or just a desirable optional extra ?
So are all new 4 beds getting 340 litre storage ??

I am not sure in size but typically during attic conversions to rooms you buy special long and thin plastic tanks so they fit through the attic door hatch and that they can be installed right at the edge of the roof. This maximises the accommodation part of the attic. You also need all pipes and wires below rafters, rather than on top during new flooring. If your tank is metal replace it as soon as possible without touching it as they can rust and flood house. If you intend doing attic conversion get a quote from attic conversion specialist. You may want a radiator in converted attic and that might mean changing water system to pressurised water to pump over height of water tank. Make sure any tank is covered and insulated to prevent freezing. Some people remove insulation under tank to keep it warm.