Hi everyone, I'm inexperienced when it comes to self-leveling compound and I'm working on leveling the bathroom floor. Most of it went well, but I skimped on compound in the last section, so there's not enough slope right there. It needs about a 5 mm slope over 1.5 m length and 1.4 m width. What's the easiest way to do this? If I pour another bag of what I used for the whole leveling, I'm afraid the compound won't flow 1.5 m, and I don't want to spread the compound manually, as that would remove the slope. I've looked at something like Ardex K14 for thinner self-leveling, but they don't recommend it for creating slopes.
What would you do?
What would you do?