noisy pump/water flow thru radiators

[hayho]

I have a Baxi Solo 3 70 pf boiler in the garage.

There is a tank in the airing cupboard with a pump. The pump seems quite noisy and there is always a loud water flowing noise in the radiators.

Not sure if the noise from the pump is being carried around the system or what? But it is noisy, to add to this there is pretty much a constant tapping noise from the the pipes in the ceiling, even when the system is on and has warmed up. Any ideas?

 

[Softus]

Have you vented the system? Does it have a chemical corrosion inhibitor in it?

 

[hayho]

no i have not vented the system and there is no inhibitor in it. is this what i need to do? if so how do i go about doing it? is it expensive? thanks for your reply.

 

[Softus]

Basically, to vent:

1. Turn the system off.
2. Open all rad valves.
3. Manually open all MZVs.
4. Vent at each rad.
5. Check that the F&E cistern is up to the expected level.
6. Turn on the system.

For more detail do a search on "venting", and for instructions on draining have a look at How to manually flush a heating system with mains water.

 

[bathjobby]

5. Check that the F&E cistern is full

Would not recommend this as it will encourage over pumping. You water level in the F&E tank should be just above the feed pipe.

 

[Softus]

5. Check that the F&E cistern is full

Would not recommend this as it will encourage over pumping. You water level in the F&E tank should be just above the feed pipe.

hayho - please note that I've edited my post to be less ambiguous.

bathjobby - are you being serious, or just pedantic? I'm struggling to believe that you think I meant 'full to brimming', and I'm curious to hear how an extra four inches of head of water would encourage "over pumping". Please enlighten me.

 

[doninator]

5. Check that the F&E cistern is full

Would not recommend this as it will encourage over pumping. You water level in the F&E tank should be just above the feed pipe.

hayho - please note that I've edited my post to be less ambiguous.

bathjobby - are you being serious, or just pedantic? I'm struggling to believe that you think I meant 'full to brimming', and I'm curious to hear how an extra four inches of head of water would encourage "over pumping". Please enlighten me.

hit the pump with a hammer

 

[Softus]

Hit you with a hammer, more like.

If you'd waited another week, this topic would have been three full years stale.

 

[Gas2Air]

You working this Chrimbo day again then Softus?

 

[Softus]

No sirree! I don't think I was in 2005 either - probably just sick of eating and watching TV.