megaflow- poor flow

[tennis6470]

Hi- can anyone help please?

I had a megoflow 210 installed (1st floor) with a vallient boiler (on groung floor) last year. both showers are on the 1st floor. The pressure was great, especially cold water, until recently when i had obe of the bathromms gutted and changed, and the pressure has fallen, especially the cold. Is there any obvious cause for this? I have regenerated the air gap in the megaflow.

Also the hot water in the megflow cylinder seems only to last for aboy 15 minutes woth of shower, not enough for 2 people to have confortable length showers sometimes.

Could anyone please help... its driving me nuts!

 

[marcr]

Your cold main is effectively your hot water. The hot may have slightly better pressure due to the megaflo storing pressure/expansion. Increasing the cold main pressure should fix both.
Is it different at the kitchen tap? Is the main stopcock fully open??
Could be that your bathrooms have balanced hot/cold feeds taken off after the pressure reducing valve fitted to the megaflo and this valve is faulty. Has it a gauge fitted?

You have an unvented cylinder and it must be worked on/looked at by someone qualified.