I just installed my Delta Multichoice Valve Trim 13/14. And do not get enough water on my shower head. Actually I am going to use only the shower head not the tub. I removed the head and replaced it but still same problem. When I removed the head I also checked the water flows very good. What leads me I may doing something wrong. Any special tip for this?

check water lines for build up and shower haed remove and do same and clean inline filter if one present

Look in where u screw the head on there should be a flow washer type thing u can take out or unscrew let me know if it works or you can find it

easy way is to install a shutoff valve on the shower head.

check the placement of the valve,, it may be 180 degrees out,, also,, try it with the shower head off, it may be clogged

Sounds like the delta people forgot to install the diverter piece inside of valve body,small white plastic piece screwed into valve. If you take out valve you should see it up inside body

not all that familiar with your particular faucet. but in my experience, most plumbers dont put grease on the valves when installing them . the factory just uses enough grease to get the valve in the faucet. if you have extremely hot water and use it . it wont take to long for it to cause this problem.. just an opinion. i cant imagine how the buildings shutoff could have anything to do with your problem.

From rim of tub the spout should be 4" up. From spout to valve body is 8" between. Shower head height is typically from the floor is 72" to 78" in height. Hope this helps, please rate on it's helpfulness and thank you for using FIXYA. Have a great week. Jeff

When installing a flexishower head, install it in front of the actual shower head with a diverter switch. If you try to operate two shower heads at once, you may suffer poor water pressure. There are handheld shower sets sold which are installed to existing shower assemblies with ease. Rememer to use plumber's tape and protect your stainless steel by wrapping you pliers teeth in electrical tape.

Hello. Delta uses a replaceable cartridge inside the faucet.Most commonly they will drip if they are going bad.There is very little you can do to repair the cartridge but replacement is affordable. Usually by removeing the handle and the next trim piece you'll be at the cartridge which should pull out but may be stubborn due to water deposits.Take the part with you when you go shopping,there are many different cartridges.
builderdale

The only possible explaination is that the water is finding it easier to go up than down. Water is lazy, just like me. ;)

Use an allen key to remove the tub spout. It's underneath and awkward. Once the allen key is loose, the spout just slides off. Try running the water. This may solve your problem and all you'll need is a new tub spout. If not.....

Turn the water off to the house.

Use an allen key to remove the handle.

Use a phillips to remove the trim plate (2 screws). Cut the silicone around the trim if it's there (which, in a proper installation it shouldn't be, but...)

Unscrew the nut (usually chrome) holding the cartridge into the brass body of the valve. The cartridge pulls straight out. Check for restriction in the ports of the cartridge itself. Check for restriction in the line going down to the tub spout. If you can't find anything, replace the cartridge.

Reassemble & Enjoy!