Low water pressure in shower
 

The combination tub/shower has plenty of water pressure but it just trickles out of the bath with only a shower. I've cleaned out the filter a couple of times, still some sand coming through. It works slightly better after the cleaning but not much. Is there an adjustment in the valve body to allow more flow or did the conservationists win this one?

if its slow out of the shower head just take it off and remove the washer that reduces the water flow.

If you have a new home, contact home warranty. I had the same issue, plumber came out put new filter in.