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Matt0029

Gas Engineer
Messages
1,192
Has anyone one fit or serviced one of these before; Heatrae Sadia 25l 9004010.
It a 25 litre hot water storage cylinder.
 
If it gravity then there has to be a air vent in the cylinder to allow the level to drop to fall enough to open the solenoid valve? maybe it contains a air bubble like the megaflo and the like?
Are there HW draw offs above the cylinder or on the same level?
 
Maybe worth checking that for scale build up, if its restricted then the flow from any hot tap will be restricted as well except its just a pure vent pipe,, any photo or description of the unit?.
 
I have a upstairs "1/2" cartridge tap gravity fed from ~ 0.25M that flows 4.0LPM, so if the water level in your cylinder is, say 0.15M above the tap then you might expect ~ 3.0/3.1LPM.
 

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