Hi HomeDepotCustomer,
We can help! The Ladera showerhead has a 1.8 GPM maximum flow rate that meets or exceeds EPA WaterSense Standards and CALGreen criteria and complies with California Energy Commission standards. However, if you feel you are receiving much less flow, call us at 1-800-732-8238, and a member of our Support Team will be happy to troubleshoot with you and send you the necessary parts to resolve it. Below are links to a video showing the temperature adjustment and the valve instructions; please refer to page 9, step 11 of the instructions. This instruction will show you how to adjust the temperature disc on the cartridge to set the desired water temperature. If it's not the adjustment, a new cartridge replacement would be needed, and we will gladly send you one by calling 1-800-732-8238.
0X8-310A Valve Installation Guide:
https://pfisterstorage.blob.core.windows.net/documents/44353-0700%20web.pdf
Temperature Adjustment & Cartridge Replacement Video:
https://youtu.be/K7b409ZAsys
Thanks,
Pfister