Cold water storage tank.

SpiderMonkey

My cold water storage tank has one mains pipe going up to it. The same tank then has just one pipe running down, which then (under the floorboards) goes 3 ways:

- to the toilet
- to the sink
- to the bath.

I want to remove the tank.

Can I just connect the mains pipe to this downwards pipe?

Thanks,

MX5huggy

How is your hot water supplied ?

If you have considered this then OK you can do as you surgest but yous should expect leaks as the pressure go up some taps toilets are not designed for high pressure.

warmhands.coldheart

^^ Agree, no reason in theory why you couldn't do it. just need to be aware, depending on the type/age of the pipework, you could get leaks around old joints in the pipework that may not be 100% or have weakened over time....

Plumber90

It's not just as simple as that, you will need to put an expansion vessel on the cold main to allow it to expand. Also your cylinder may not be able to cope with the added water pressure of being fed from the mains.

tonyh66

an expansion vessel on the cold mains pipe to allow it to expand? never heard of that before or had it in any house I have lived in.

Plumber90

Sorry worded that wrong it's on the mains going into the cylinder to allow the water in the cylinder to expand as it heats.

I'm presuming if you get rid of the cold water tank you will also get rid of the f+e tank for the heating. This will mean you need to git a filling loop to fill up the heating as and when needed and it will also need another expansion vessel for the heating side.

tonyh66

they could have a cold water tank because they have low water mains pressure and need the tank to increase the pressure at the taps.

SpiderMonkey

MX5huggy wrote: »

How is your hot water supplied ?

If you have considered this then OK you can do as you surgest but yous should expect leaks as the pressure go up some taps toilets are not designed for high pressure.

I had the work completed, the plumber dint mention anything about risk of leaking. However what occurred next was exactly as you said- the toilet main pipe leaked. Its sorted now, fingers crossed.

southcoastrgi

Plumber90 wrote: »

It's not just as simple as that, you will need to put an expansion vessel on the cold main to allow it to expand. Also your cylinder may not be able to cope with the added water pressure of being fed from the mains.

oh dear .................