Adagio concealed cistern (Grohe).

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Is there adjustment on these,? mine overflows intermittently and can find no instructions online ( only parts list).
 
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Pop the flush valve out.
It's sometimes a grotty seat/washer.

Sometimes the mechanism doesn't retract properly after a flush.

Also had them where the plastic grid at the top isn't fitted properly so valve won't seat.
 
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Pop the flush valve out.
It's sometimes a grotty seat/washer.

Sometimes the mechanism doesn't retract properly after a flush.

Also had them where the plastic grid at the top isn't fitted properly so valve won't seat.
Its only been in use a month.
 
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Seen them do it from new.
My guess is the top part hasn’t clicked in properly.
 
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Do you how to adjust levels, when it overflows it's so high it also weeps out of the casing.
 
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It shouldn’t leak out of the casing.
I’d have it apart and check everything is in properly.
 

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