Cleaning solution flush

[Knappers]

It sounds quite normal, I wouldn't worry

 

[gazdkw]

So the boiler should bubble, gargle after refilling?

Plus, it kept initially stuttering when running the hot water after refilling, is that normal?

It's working fine now though so I can't have damaged anything

 

[gazdkw]

I have completed a 3rd drain but the water still seems a little murky. How clean is it meant to be?

the colour is slightly darker than apple juice

 

[Chuck]

I have completed a 3rd drain but the water still seems a little murky. How clean is it meant to be?

the colour is slightly darker than apple juice

You might find this helpful, illustrates use of turbidity test tube in the first section:

 

[gazdkw]

Thanks, looks like I'll be buying a vastly overpriced turbidity tube.

On another note, iv done the final connections on the 2 new radiators. System all filled up and all bled. 2 new radiators are not as hot as any of the others. Both trvs are fully open, installed on the flow side. Both lockshields are fully open. Pressure is up to 1.8bar.

Can anyone help diagnose why? Only difference I can tell from all other rads is that they are pipped in plastic for about 4/5 metres and then copper for the final section that comes from floor/wall.

One of the new rads is a 1400x600 type 22. It should be very warm.

 

[Ric2013]

In a nutshell, a TT test will only tend to pass if the water seems to be very clean when looked at in the normal way. In my limited experience of using TTs, anyway.