Fresh Water Airlock - am I missing something?

[daniel_thomason]

More often than not, when I fill the fresh water tank of my MY26 GC600 to 60 litres (minimum) I get an airlock in the system, which means me using the shower hose in the wc to suck on, to draw the water past the pump.

Am I missing a trick? This cannot be standard behaviour…

 

[soldana]

Doesn't sound right. We have had a MY25 GC600 for a few months and never experienced this issue.

 

[daniel_thomason]

Doesn't sound right. We have had a MY25 GC600 for a few months and never experienced this issue.

Yes... that's what I thought.

 

[Maidment_Grand]

My MY26 has no issue in this regard and I have filled up to 100l a few times for off grid stays.

 

[daniel_thomason]

My MY26 has no issue in this regard and I have filled up to 100l a few times for off grid stays.

Thanks. It’s going in next week for fixes to electrics, amongst other things. So something else to add to the list of fixes required…

 

[GordonH]

Not normal. If you have triggered the frost protection valve so all the water has been purged from the Truma it takes a fair while with the pump running to get water back through the system. As in a good number of minutes.

 

[daniel_thomason]

Not normal. If you have triggered the frost protection valve so all the water has been purged from the Truma it takes a fair while with the pump running to get water back through the system. As in a good number of minutes.

Thanks @GordonH it’s not Truma related unfortunately. Happens even when the Truma system hasn’t been drained.