Steam cleaner dipstick

Made a quick dipstick to check remaining water level in my steam cleaner during top offs so as not to overfill. Can't see in the tank, so instead of dumping all the water out and starting over with the measuring cup, use this. Mark the full level on the dipstick with a Sharpie or how much each measuring cup makes it up to. You will probably need to rotate 45* in your slicer because it's 230mm long.