Cold water tank question

[JB1992]

Hi all,

I recently had my boiler replaced with an ideal Logic max s30 boiler and also a 210L Gledhill indirect Vented Stainless cylinder. New 3 port valve, nest thermostat etc.

I also had a Stuart Turner 3.0 bar twin impeller regenerative shower pump fitted. (possibly overspecced)? To run two showers. Unfortunately after 10 minutes the power drops and I believe I am running out of water in my cold water tank. Unfortunately also, the plumber has gone AWOL. The pump is ran in 22mm to the shower and also to the cylinder/tank. What are my options? Can I fit another tank in the loft to boost it? Thanks,

Josh

 

[Last Plumber]

Hi all,

I recently had my boiler replaced with an ideal Logic max s30 boiler and also a 210L Gledhill indirect Vented Stainless cylinder. New 3 port valve, nest thermostat etc.

I also had a Stuart Turner 3.0 bar twin impeller regenerative shower pump fitted. (possibly overspecced)? To run two showers. Unfortunately after 10 minutes the power drops and I believe I am running out of water in my cold water tank. Unfortunately also, the plumber has gone AWOL. The pump is ran in 22mm to the shower and also to the cylinder/tank. What are my options? Can I fit another tank in the loft to boost it? Thanks,

Josh

How big is the Cold Water Tank?

 

[JB1992]

How big is the Cold Water Tank?

Good question. I will take a picture tonight for you - I had looked up there and it's very big! but no labels or anything and it's all insulation wrapped.

I know before my boiler was changed it kept overflowing so perhaps there is a problem with it?

 

[Last Plumber]

Good question. I will take a picture tonight for you - I had looked up there and it's very big! but no labels or anything and it's all insulation wrapped.

I know before my boiler was changed it kept overflowing so perhaps there is a problem with it?

I know this may be obvious but Length x Breadth of the tank (presuming it is rectangular or square) x depth of water will tell you the volume near enough, (If it's cylindrical π r2 x height).
There are 1000 litres in a cubic Meter. (roughly 6.25 Gal per cubic foot).
Measure your Showers flow rate.
Measure the flow rate you have at the tanks Ball tap.

To measure the flow rate of the shower/ball tap, fill a vessel with a known volume and time it in seconds.

Once armed with that information you should be in a position to draw some conclusion.

If you need more help, come back with the information I asked for.