Problem with flow rate upstairs only

[blueplanet]

Hi Could I ask for some help with a water flow rate problem.

I have good mains water pressure on the ground floor. There is no tank in the loft but an unvented cylinder in the upstairs airing cupboard. A gas heat only boiler.

Upstairs I have two en suite rooms. One with a shower and one with a bath. Basin sinks in both rooms.

The cold flow rate is very poor in both rooms whether shower/bath/basin taps. Sometimes nothing comes out. The hot is good for about 30 seconds and then it drops to almost nothing in the shower/bath and basin taps. You cannot have a shower or bath at the current rate.

I've checked all the stop cocks and they are all fully open. There is a pressure top up in the airing cupboard and its at 1.5 bar.

As the flow rate is good downstairs and the system runs off the mains it seems the problem is inside the house. Anyone have any suggestions on what I else I should check or suggestions for the problem? Thanks.

 

[blueplanet]

I had a plumber replace the multibloc valve and it resolved the flow rate issue. Now the pressure upstairs is awesome! But I have now noticed that the waste discharge leaks outside.

The valve to the red expansion vessel seems to have gone up and is now higher than the red marker. I read some where before that when the multi bloc it could affect the red vessel if something is not done in the correct order.

Any thoughts would be welcomed. Thanks.

 

[ShaunCorbs]

I had a plumber replace the multibloc valve and it resolved the flow rate issue. Now the pressure upstairs is awesome! But I have now noticed that the waste discharge leaks outside.

The valve to the red expansion vessel seems to have gone up and is now higher than the red marker. I read some where before that when the multi bloc it could affect the red vessel if something is not done in the correct order.

Any thoughts would be welcomed. Thanks.

That sounds like your heating expansion vessel how high is high should have numbers

 

[blueplanet]

That sounds like your heating expansion vessel how high is high should have numbers

The pressure was up to 3 bar. I checked again after your message and it was at 2 bar. Then I bled the radiators and it is now down to just over 1 bar. I will run the heating in the next few days and also check to see if water has stopped coming out of the discharge pipe. Thanks.

 

[blueplanet]

OK, so the readings on the heating gauge seem to be normal. I've havent used the heating for a while so I guess it goes up when the heating is running and then drops. This I guess is normal.

But the discharge pipe continues to leak water. Is this likely to be due to the multibloc that the gas engineer fitted?

 

[ShaunCorbs]

It could be best to get him back to have a look