During the process of replacing a coolant hose on the car yesterday I of course lost some coolant. I topped it up, ensuring that radiator, & the 'pressurised overflow bottle were full as well as ensuring the non pressurised section of the bottle was up to the max line. I then brought the car up to temp by leaving it idling for a while. Left it overnight & the levels were the same this morning. Just did a 10km round trip into Lockhart (no more leak - yay!) & on return the pressurised side of the bottle is down (as in pic). I'm having a senior moment, unsure whether to top up the bottle or leave as is. Can someone advise please.

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