Thanks Tony, that's mostly what Roger from Tunze suggested as well.
I think my levels are within reason and I have the new impellers.
Mag 1500 ppm
Alk 9.6 dkh / 3.43 meq/l
PH 8.2
The 7095 has the Interval 2 setting that the 7094 doesn't. It keeps one pump idling and pulses the other instead of shutting off while the other one pulses.
Keeping the one idling instead of stopping is supposed to really help them not to stick.
Something else to upgrade, don't you hate planned obsolescence
Already got a list going
Euroreefs- new pumps and impellers
Reefkeeper- new settings and PH control
Tunze controller
1080P TV