How do you fill it? - Sunbeam Safety Glide 3891 Iron

To open the Rowenta Superpress 050 iron, you should first unplug the iron from the power source for safety. Then, locate the water reservoir button on the top of the iron. The button is usually located near the back of the iron.
To open the reservoir, you need to push the button inward and turn it counter-clockwise. This will release the reservoir from the iron's body, allowing you to fill it with water.
After filling the reservoir with water, you can reattach it to the iron by aligning it with the body and turning the button clockwise until it clicks into place.
Remember to never fill the reservoir above the maximum fill line, as this can cause the iron to leak water or even cause damage to the iron.

Fill then stand it up to view the fill level. Unless you see a warning I doubt you can overfill it. Just top off the tank and go.

Try out this site:

http://www.managemylife.com/mmh/owner_manuals

Where did you purchase a new cap, mine was accidentally broken and can't find a replacement.

see the video attached and proceed according. God bless you

Slowly fill the water tank with water. The stink bug should rise to the surface. Continue filling slowly and the flow of the water out of the fill hole should force the stink bug out! Remember as you're filling you must use something that will NOT block the fill hole or the water cannot drain and your "little friend" won't be able to be flushed out by the flow of the water.
I hope this helps!

Unlock the tank, turn upside down and you'll find the fill cap. Remove, fill and recap.

FOR HOUSEHOLD USE ONLY
FILLING INSTRUCTIONS
1. Place the unit on a stable surface.
2. While holding the water tank with one
hand, move the release lever toward the
power cord.
3. With the reservoir released, pull up on
the reservoir to remove it from the body of
the unit.
4. Turn the reservoir over, revealing the rubber
inlet cover.
5. Open the inlet cover and fill the tank
with everyday tap water (filtered water may
reduce hard water problems).
6. Close the inlet cover and return the
reservoir to its place, making sure that the
reservoir is secure.

Hope this helps! Hal

My iron leaks when I fill it past the fill line, so make sure you're filling it only to the fill line.

replace the o-ring gasket on the tank fill cap. It is a simple neoprene "O" ring you can buy at your local hardware or NAPA aauto parts store for less than $3.00.
st. louis mo Ralf