Which floor cleaning solution for refill?

I'm so confused about the correct refill for the little tank that sits next to the dust bag at the dock, i just cannot find the exact product refill, which one should i use for refills? There's this one here on the site, but it seems like it's meant to be poured like an enhancer for the clean water tank, am i mistaken? Is this one supposed to be the one to refill the smaller tank? I would really appreciate your help to know which product (maybe even where you buy it) you use for this purpose

Hi,

Next to the dust bag is the Auto-Detergent Compartment. It can be used to store cleaning solution for washing mops. Please refer to the attached accessories for details.

You can purchase it through the following link:

https://www.dreametech.com/products/multi-surface-floor-cleaning-solution

I refilled mine with Shark Vacmop solution. I also put a bit in the clean water tank. No issues so far with L40 ultra

Yes, that’s the one to use. Just pour it into the little gray tank, do not put it in the clean water tank. I learned the hard way because when I did that it caused a build heavy build up on the vacuum brush and intake area under the brush. Took me over an hour to clean it off. I also quit using mop and vac because that also causes a build up. I now use vac then mop. Tip: the tricut brush is worth it.

I was confused about that to when I called the customer service line they said they had changed were you put the cleaning solution to putting the cap full of it in your clean water tank. The new version of this dream me they did away with the little storage tank for the solution now you just pour that in the clean water tank. Hope this helps.