2 upstairs radiators need bleeding everyday

[king of pipes]

I would say your system is piped wrong see attached diagram circled is the correct position for the cold feed and vent in the neutral zone before the pump . Kop

 

[Aire]

Can you tell us which way the pump is flowing? From the pic it looks like it's pumping upwards but the installer may have flipped the pump head 180°. There will be an arrow on the side of the pump body to show direction of flow.

 

[Jonathan Reid]

Arrows are pointing downwards on the sides of the pump.

 

[Rob Foster]

Hi Rob, with regards to the movement of water in the f&e tank, if it was free of gunge and blockages would the water level rise when the heating is on and fall when the heating is off, or the other way round?

it might well rise or fall depending on the problem but really should be static. my concern is if it was all dandy why a recent problem, have you been playing with the pump speed ? or bunged any stuff in
chking

 

[Jonathan Reid]

Oh no. Rads started to play up so it was suggested to reduce pump speed from 3 to 2. No difference resulted so reduced the speed down to 1. Again no difference. Pump speed remains on 2 as all radiators warm up consistently throughout the house. Its just that 2 of them keep getting air in them.

 

[king of pipes]

Where is the vent for the system you could be pulling air in? it's the pipe that goes up and over the smallet tank in the loft . Kop

 

[Rob Foster]

ok , I am with the boys tomorrow at 7.00, central liverpool as its a new high rise start for a cuppa and will pose the problem, boys ! they are all over 6o been round the block , the world and most started at Cammel Laird in the diesel subs .lets see
chking

 

[Aire]

When your bleeding your rads, are you bleeding them when the pumps off or when the pumps running?

 

[Jonathan Reid]

Tried bleeding with pump on and off. Does it make a difference?

 

[king of pipes]

Better to do it with the heating off bud you found the vent ? a post picture please . Kop