It could, but that won't affect the flowrate through the boiler which D.036 showed as 6.5/7.5LPM, even if the boiler is switched off that flowrate won't change, it will just be cold water.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local