does water additive affect ph levels?

I have a cat with strutive crystals.

My dog has breathe issues and so I wanted to get synergy labs dental fresh for the water that they share.  (plus cat could use some teeth help as well)

I just need to know with  his serious issue (he can only eat c/d foods)  that adding something to his water will not affect him poorly.

THANKS!!!!!

I-have-a-crystal-kitty,been-8-years-and-no-more-issues,so-I-know-all-about-what-to-do-and-what-not-to-do,LOL.

Why-is-he-on-C/D,will-he-not-eat-other-foods?

If-you-think-about-it,the-pet-food-companies,try-to-push,dental-foods,they-say,eating-the-hard-crunchies,gets-rid-of-the-placque-and-tarter.Thats-the-same-as-telling-humans,if-they-eat-hard-crunchy-things,it-will-get-rid-of-tarter.Does-that-make-sense,LOL?

Same-thing-with-the-stuff-they-want-the-public-to-add-to-their-water.Would-it-work-for-humans......no,so-why-would-they-think-it-would-work-for-pets,LOL?

I-don't-know-very-much-about-dogs,LOL,but-with-kitties,if-they-have-bad-breath,its-an-underlying-issue,such-as-dental-or-internal,ah........the-same-as-with-humans,lol.

CD is the only food that doesnt cause problems for him.  I switched him once and he had to go to the vet costing $400. 

As for giving him this additive its only because I wanted to try it for my dog - they just drink the same water so i dont want him to be affected even if it doesnt work for him. 

This stuff is supposed to work to fight tartar which may be causing my dog's bad breath.   I do try to brush their teeth but its not easy.

Thanks!!!