When i'm filling the tub with water, the water back feeds up to the shower head and sprays out. I changed the spout and also moved the shower knob to make sure it wasn't stuck in the up position for the water to come out the shower head. I have a delta set up.I know i'm missing the filter that goes inside the rough in part of the handle, but i was told that would't make a difference

Because the valve between the spout and shower pipe is defective - you need a plumber. Or locate the valve, move it from full on to full off a number of times to loosen the corrosion and perhaps it will seal at the shower position. Generally the shower valve is a pull-up knob on top of the tub spout or a lever that turn, mounted near the hot / cold water controls.

Do you have water coming out of the tub spout and not the shower head? If so how does the water get directed to the shower head,is it by pulling up the diverter on the tub spout?If water is still coming out of the tub spout then the diverter is bad and the tub spout needs to be replaced.

There should be a dirverter on the tub spout. It will be either a knob to pull up or a ring to pull down on and hold untill the water comes out the shower head.

If there is no dirverter go buy a new tub spout with one.. The prior owners may have installed the wrong spout.

If you pull the silver knob on the tub spout up, the diverter located located inside will redirect water up to the shower head and when lowered it will return the water to the tub spout. It sounds as thought the diverter is not working properly. Hope this helps..

found someone else to help.....problem wasn't with airconditioner...you didn't even read my email!!

Does the tub spout water flow stop when the shower knob is pulled?

Was the systems pipping flushed before the shower head was installed?

It may be clogged, remove the shower head and then attempt to operate. If it is clogged you will see debris trapped in the screen at its connection point. The shower head can be disassembled - cleaned - reassembled

Is the shower head an adjustable type, that may be in the off position?

Good luck
Aduz

You will need to either replace center "shower diverter"assembly or a quicker fix would be to remove old tub water fill spout and replace with a "pull up diverter knob" type water spout. Cost about 10 dollars Hdepot Pull Knob to divert water to shower when showering.

jthomefix

the connections are reversed,just change them over and this will fix the problem.

There is a threaded stem that passes through the spout and attaches to the white plastic diveter valve. If you are starting from scratch (everything apart), you can put it back together in this order:
1) Place the white plastic diverter inside the spout. the circular side with the black round washer should face the the wall side of the shower (mating up against the threads for the water pipe).
2) The stem can now be inserted from the top and into the notched section of the white plastic diverter valve. The threaded end of the stem shoud be outside of the spout (from the top side).
3) A round black washer fits over the threads. It should sit right where the threads end. Dont push it all the way on to the unthreaded portion of the stem.
4) Screw the threaded knob onto the threads.

Should be ready to install now. Including the spout itself, there are 5 parts and are configured in this order from top to bottom.
1) Female threaded knob (the knob for operating the spout)
2) Threaded stem (threads on top)
3) Round black washer
4) Spout
5) Whit plastic diverter valve.

Mine leaks when I turn on the shower, thus reducing shower pressure. I looks like a poor design to me. The stem is not a tight fit in the spout and this allows the diverter to "wobble". The washer on the diverter valve does not seat tightly and allows water to leak out the tub spout when showering. I would replace the spout.

The valve is installed upside down and needs to be reversed. There is a diverter in the valve that gives the spout priority. When the valve is upside down it gives the shower head priority. Thats why it runs without the diverter being activated. You will need to get in the wall from one side or the other. Cut the valve out and either flip the faucet Or change the direction of the diverter depending on the style of valve.

Good Luck, Phil