On 10/03/2019 11:18, DerbyBorn wrote:

The filling loop will sound like it is passing a lot of water - but it is
pushing against some back pressure.

Its still got a 4 - 5 bar advantage over what is in the system (system
pressure say 0.6 bar when I start refilling, mains pressure 6 bar).


--
Cheers,

John.

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