It's the flooding problem most of all. I'm in one of the few Manhattan co-ops that still allows washing machines and dryers and it's a wonderful thing to have it in my apartment. But many landlords, co-op board and condos don't permit them because of the flooding.
Sodium acetate or hot ice is an amazing chemical you can prepare yourself from baking soda and vinegar. You can cool a solution of sodium acetate below its melting point and then cause the liquid to crystallize. The crystallization is an exothermic process, so the resulting ice is hot. Solidification occurs so quickly you can form sculptures as you pour the hot ice.
For locations to buy dry ice & Storage Containers. All about dry ice blast cleaning. Need dry ice blast cleaning services? For used dry ice equipment see: SAFE HANDLING OF DRY ICE. Caution: Keep Dry Ice away from children if they cannot be closely supervised at all times. HANDLING Dry Ice temperature is extremely cold at -109.3Â°F or -78.5Â°C. Always handle Dry Ice with care and wear protective cloth or leather gloves whenever touching it. An oven mitt or towel will work. If touched briefly it is harmless, but prolonged contact with the skin will freeze cells and cause injury similar to a burn. STORAGE Store Dry Ice in an insulated container.