4M M1 IN-SITU WASHING IMAGES

For our first in-situ washing test, we had not yet received the exterior inflatable seal so we used duct tape and plastic sheet.

Detail of how the balcony is attached to the chimney with a special bracket.

Detail of the interior inflatable seal (between mirror center hole and chimney) and its valve.

Water is being sprayed on the mirror.

A small pool is forming at the bottom and being sucked up immediately by a water pump.

Detail of spraying water.

Detail of drying the mirror with dry nitrogen.

List of materials for the washing:

*'balcony' and its mounting bracket to attach to the chimney

* 2 white plastic suits

* 2 natural sponges (wash them in washing machine)

* 2 large yellow plastic tanks (1 for Orvus solution, 1 for bidistilled water)

* 50 liters filtered warm water with orvus

* 100 liters bidistilled water

* 1kg KOH in solution into 20 liters of filtered water (spray with hose too or directly from bottle?)

* submersible pump

* water hoses: main one with T fitting and 2 secondary hoses

* 2 water spray guns

* 4 nitrogen gas guns with corresponding hoses

* 2 nitrogen gas cylinders

* surgical gloves