Draining CH System (again)

If you close all the radiator valves before you drain the system will that mean you don't have to bother with fiddling around with the bleed valves when you fill it back up?
Cheers. Kate***
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SadKate*** wrote:

No, you'll still have to bleed, but not as much.
--
Grunff


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No. Doing this keeps the water in the rads, any fresh water introduced will have air mixed and the air will rise to the top of all rads. When screwing down the lockshield valves note the number of turns, then when opening unscrew the same amount of turns.
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It'll be better, but not elimintated. However, if you haven't drained the system in a while, drain everything and put new inhibitor in. Your old stuff may be well past its use by date. It may well be a good idea to flush the system, if the water comes out too black.
Christian.
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