Horsch metering unit

[zealman]

Hi all. I have a Horsch Maestro CC planter. Has the standard Horsch metering unit under the fert tank, non pressurised tank. We’ve had the machine for 3 seasons now, and this season I’m suddenly having trouble with fert blowing out the grill in the back of the metering unit. There is no visible reason why its doing this, when previously it has not been an issue. Has anyone had this problem before, any ideas on things to check? Cheers.

 

[PSQ]

No experience of the fert meters tbh, but the seed meters have a rubber strip across the roller that periodically needs replacing.