Hi,
We are also looking for a solution for the same problem and were wondering if you found an answer. If so, could you guide as well.
Thanks

please check out this video on youtube.
http://www.youtube.com/watch?v=E_CC0-yBqVA

I'm having this same issue and there doesn't seem to be a great solution anywhere, so i'm bumping the thread in the hopes that someone knowledgeable will have a bright idea. I considered the solution suggested by peteinsonj, above, but since the current tub filler is deck mounted in tile with no access panel I don't see how to change the plumbing 'guts' without ripping up the deck. Am I missing something?

In some instances you can access the tub mixer by coming in from the back through an adjacent room.

It should also be mentioned that if you install a hand shower on the tub spout you are also required to install a backflow preventer on the hand shower line.

Thank you for adding your thoughts. I unfortunately cannot access the plumbing this way [the 'back' walls are second story exterior walls], but maybe this idea will help someone else.

There is a Company that made a fixture just for those cases where the people don't want to bother the tiles or deck, this is a in-line diverter attached to the Spout and has two outlets one for the spout and one for the handshower, here is the e-mai of that company who made this adaption:
dolphinengineering@gmail.com

I hope that this can help to solve the problem.

Im trying to do the same thing. Any new insights?

There is no still no magic. You still have to replace the valve. As you will always need to do. That is why you need to plan for an access panel from the beginning.

https://www.homedepot.com/p/Delta-Adapter-for-Hand-Shower-to-Aerated-Faucets-in-Chrome-U7700/203331973

10 years later and still no solution ? I have looked at every attachable shower head I can find, even RV shower attachments. Really want some thing i can add to and remove since I rent and don’t have the ability to bust through walls etc.

Erika,

I thought there would be an answer above, as well, given 10 yrs! A 10 min search yielded a portable handheld sprayer for a normal, non-diverter faucet. I'm ordering for my tub, so I can only go by the reviews given, which seem fair and worth a try (esp at the price!).

Hope this helps future visitors.

Plumb Craft Waxman 7653700B

Versa-Bath Spray

http://www.walmart.com/ip/Plumb-Craft-Waxman-7653700B-Versa-Bath-Spray/15389318

Just ordered it. Seems most reviews were fair, definitely going to purchase a clamp to keep it from slipping off

Anyone try this? I may give it a shot.

KLLEYNA Shower Head Sink-Faucet Bathtub-Bathroom-Garden - Hose Sprayer Attachment(5 Adapters) for Hair Washing & Pet Dog Rinse & Baby Bath, ON/OFF Extension for Moen, Kohler, Delta, American Standard

https://www.amazon.com/KLLEYNA-Sprayer-Washing-Bathtub-Powerful/dp/B0836TBMGG/ref=sr_1_1_sspa?keywords=Shower+Head+Attaches+to+Tub+Faucet&qid=1643734929&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyVU0xS0ZNVk1YUjVVJmVuY3J5cHRlZElkPUEwNTkxNzUwM05GVElOMTg2UTlBTSZlbmNyeXB0ZWRBZElkPUEwNDYxOTQ1MU5aMzdBWVJVNE01RSZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Looking for same answer. Anyone tried the Kllenya product above?