Unvented Tank With Multiple Taps

[ollie2017uk]

Hi all, I recently had a new unvented everflow 180 tank installed. The pressure off the tank is awesome, however if i run a bath and the kitchen sink is on, both take a huge drop in pressure more so than i'd expect. Is there anything that can be done about this or not?

 

[Simon F]

live with it.
or look at having the incoming supply upgraded??

 

[ShaunCorbs]

whats your incoming pressure and flow?

 

[ollie2017uk]

I was told it was 3.5bar (I think) does that sound about right? I didn't have this problem with the tanks it replaced though! So no disrespect I don't really want to "live with it"

Could I add an accumulator to the system?

 

[king of pipes]

No you can't but your G3 Installer could

 

[Last Plumber]

You will only get out what you put in.

Whatever the flow rate on your mains water is will be shared between outlets.

Did your installer measure the flow rates and pressures ( both of them ). and talk through this with you ?

 

[Last Plumber]

You will only get out what you put in.

Whatever the flow rate on your mains water is will be shared between outlets.

Did your installer measure the flow rates and pressures ( both of them ). and talk through this with you ?

 

[ollie2017uk]

You will only get out what you put in.

Whatever the flow rate on your mains water is will be shared between outlets.

Did your installer measure the flow rates and pressures ( both of them ). and talk through this with you ?

Not that I remember, How is it then that the old system with the 3 tanks seemed to cope with using multiple taps better then?

 

[Last Plumber]

It could be that the pipe sizing was correct to supply all the Outlets at the same time.

It could be that you had multiple outlets on the tanks ( individual supplies to various Draw off points).

Now you are sharing one main supply between every draw off point.

What size is the mains to your property and to your New cylinder ?

What is the flow rate at the first draw off point ( nearest main stop tap )?

What pressure do you have at that point ?

 

[Last Plumber]

It could be that the pipe sizing was correct to supply all the Outlets at the same time.

It could be that you had multiple outlets on the tanks ( individual supplies to various Draw off points).

Now you are sharing one main supply between every draw off point.

What size is the mains to your property and to your New cylinder ?

What is the flow rate at the first draw off point ( nearest main stop tap )?

What pressure do you have at that point ?