I drained the gas hot water heater. The down stairs bathroon seems to have a little better hot water pressure but the upstairs has NONE and the kitcken has very little.
After we drained the heater.. there is now air in the lines. I assume that is normal after doing that.
Anyone know what is up?
Just bought this house.. please help!

Clean your Aerators on faucets. Aerator is the removable filter screen on tip of your faucet spout.

Also, Remove your shower heads, run water w/o it for few seconds. Clean shower head filter screen. Reinstall. That should do... Back to you... Milo