Low flow from the shower (K-305 Rite-Temp Diverter Valve)
Try this solution
Clean the Channel on the K-305 Rite-Temp Diverter Valve
Low flow from the shower may be caused by a build up of sediment or debris in the channel between the valve and diverter on the K-305 Rite-Temp Diverter Valve.
For instruction on how to clean this channel, see the step by step guide.