Help/advise needed with poor water pressure

[imacca]

Hi all, We have recently moved house and approx 3 years ago the previous owners had a new boiler and hot water storage cylinder fitted. Boiler: Vaillant ecotec plus 418 Storage cylinder: Ariston Classico STI 125 HE unvented hot water storage cylinder installed in the loft It was my understanding that an unvented water cylinder such as the above should be giving mains hot and cold pressure throughout the house. No need for shower pumps etc. The issue we have is that the hot water pressure is shockingly bad. Eg. Running any hot tap and the pressure drops to a trickle after a couple of seconds, the shower will stop if another tap is run etc etc. Im surprised that it is like this given the newness of the kit. Is it possible that some flow control has been installed? Or maybe there is some fault with the install or kit? Any advise much appreciated. Thanks, Iain.

 

[SimonG]

Is the stop tap fully open? That's the easy one after that you will need a g3 qualified engineer to investigate further around the cylinder.

 

[lame plumber]

need to get it serviced and ensure the filter on the unvented cyl is checked and clean to start.

 

[spanner]

Are the cold water taps running ok???

 

[imacca]

Yep the stop tap is fully open.
we have received no details about I being serviced so looks like I will have to get this done.

 

[imacca]

Hi spanner, yep the cold taps are ten times better than the hot.

 

[Ollieg]

Call some one out. It will probably be and easy fix and not cost too much. It's not something you want to play around with. You have done the basics already.