backup and modified sine wave

[reefkeeper2]

My old ups inverter died so I need to buy another. Will all the Tunze stream models run OK on a modified sine wave inverter?

 

[rvitko]

It isn't a problem for the DC controllable pumps. For the AC synchronous models the pumps can stay running on this system but will struggle to start. As long as they keep going you will be fine, but if they shut off and need to be restarted the pumps will tend to go backwards and the propellers may be damaged.

 

[reefkeeper2]

Thanks Roger