Engine petcocks 1UR-FS (Coolant flush)

[PralineLC]

I want to flush my coolant, Had a quick look under my car but could not see the engine petcocks.

I assume I have to jack the car and go under the car.

Has somebody done it before or worked at the same engine? A picture would be appreciated

 

[bloc]

Not sure about the 1UR but on my 3UR the right side drain is visible through the wheel well. It is roughly in line with the top front corner of the bucket that locates the spring/strut, and looks like a 10mm bolt screwed into a larger bolt with a short metal pipe sticking out the bottom. The left side is more hidden but it is there, also accessible through the wheel well.
With these engines being in the same family maybe the location and format is similar?

 

[PralineLC]

Thnx for the right direction, found it!