civvy stool too firm

[Noah & me (GA)]

Daniel is one of our civvys. He occasionally has stool that is not quite hard enough to make me concerned but it's starting to bother him a little more now. He grooms himself very well but sometimes has a turd just fall off his behind. All five are very private in the litter and until yesterday I never knew who the Phantom Pooper was. It's Daniel that's been pooping inches outside the box; not straining, no visible discomfort. He is very low maintenance with no history of medical problems, we grabbed him off the street at a very young age.
He eats after everyone else and is fussy so sneaking something into his food may be a problem. He's due for an overall checkup so I'm bringing in a sample poop, having his teeth checked etc.
Any ideas what I'll be sent home with for his diet? What has and has not worked for you? They all eat mostly Royal Canin SO for urinary tract health. Marco's constant UTI has never returned once he started eating this.

 

[Noah & me (GA)]

I just remembered that years ago we tried something called PEG with Elmo. It's a human off the shelf product, our vet tries not to push expensive cat specific meds.
Google dropdown list says PEG is Polyethylene glycol 3350.

 

[Lisa and Witn (GA)]

I just remembered that years ago we tried something called PEG with Elmo. It's a human off the shelf product, our vet tries not to push expensive cat specific meds.
Google dropdown list says PEG is Polyethylene glycol 3350.

That is the same thing as Miralax. If they have the generic version it works just as well. I used to have to give it to one of my cats. Also mix extra water in the food. That will help too.

 

[Tanya and Ducia]

Miralax

Also mix extra water in the food.

I want to second that!
Pooping vines to Daniel

 

[Noah & me (GA)]

Daniel says thanks.

 

[Julie and Honey]

Second that, Miralax or generic equivalent works well. Vets recommend. I am using preventatively for Honey since she started the low carb food since it has no fiber and she started having issues once on all low carb. I am giving 1/8 teaspoon 1-2 x a day. If this is just a one off issue, you could try 1/8 to 1/4 teaspoon.

Found this...

The starting dose is 1/8 to ¼ teaspoon BID, and this dose is titrated upwards depending on desired stool consistency. Polyethylene glycol (PEG) 3350 is not absorbed from the intestinal tract and binds to as many as 100 water molecules resulting in a softer stool. It was shown to mildly increase potassium levels and may result in some dehydration if a patient does not drink adequately. High doses can result in diarrhea – like any laxative.