What is the material used to make the toilet?
HDPE (High Density Polyethylene) is recyclable and is UV Protected. Also it is very robust and strong besides also very light for portability.

How is HDPE different from FRP?
HDPE is a petroleum bi-product whereas FRP is Fiber Reinforced Plastic. FRP is a composition of fibers pressed or compacted together to make sheets or any other shapes using resins. FRP is not very durable as compared to HDPE. It is not capable of withstanding very high temperature. In places like India, FRP tends to peel off after a while. Especially in toilets, FRP is not a great choice since the material absorbs foul smell and contents of the waste, making it unpleasant for the user. The material also tends to crack very easily and cannot withstand much vandalism.

Where does the light and ventilation come from?
Each toilet unit has a translucent roof and provides natural light and illumination of more than 400 lux. Besides, providing of a light bulb in a toilet will prove to be an expensive proposition for the supplier taking into consideration the mentality of the public at large and the vandalism that one sees in our country today.
The toilet also has enough ventilation, which is provided on three sides of the toilet and that too very discreetly to give the user total privacy and avoid peeping toms. The vents are situated at the junction of the roof and the panels. There are 3 vents on each side.

How much does the unit weigh?
The weight of the unit varies between 85 and 100 kilograms depending on the type of unit.

What is the capacity of the waste tank?
The capacity varies from 175 liters to about 300 liters depending on the model.

How many people can use the units?
The number of people using the units varies from 75 uses to 150 or more uses depending on the model of the toilet.
The KROS Urinal has a waste capacity of 450 liters and is purely a urinal, which can accommodate about 300 to 350 users at a time without cleaning or evacuation.

How is the toilet cleaned?
The toilet cabin being mains free unit (need not be connected to septic tank or sewer line) has to be evacuated or cleaned from time to time using a vacuum driven system, which is provided by the service provider in the city where the toilets are situated for exclusive cleaning service a minimum of 30 toilets need to be purchased.

How can 100 plus people use it continuously without the waste being evacuated?
The unit contains a waste tank of varied capacity. Before the unit is used (at the time of cleaning session) the tank is charged with an eco friendly biochemical additive which helps in degrading the solid waste considerably. The bio chemical liquid also has a mint or cherry aroma keeping the unit in pristine condition preventing foul smell. It is absolutely bio degradable and not harmful to the environment, drainage or the treatment plant where it is safely disposed. The bio chemical solution is Formaldehyde free and is at par with international waste regulations.

Does the cleaning service cost money?
All good things come for a price and so does this unique cleaning service. The cleaning service consists of a waste collection tank mounted on a vehicle coupled with a vacuum pump, which evacuates the waste and also cleans the toilet with fresh water using a high pressure jetting system. The cost is very minimal as compared to the value of the privilege and services provided.
An annual cleaning contract can also be worked out at a very reasonable price.

What is the difference between a drop tank, a re-circulating tank and a fresh water tank?
All the above are types of waste tanks and their systems. A drop tank is an open tank, which has no frills and like the name suggests it is used as a popular toilet for construction sites, roadsides and places where one needs to have a quick job and get on with it. The system has no flushing facility as the waste contents are literally dropped to the bottom of the tank. Water can be provided inside this particular unit with a capacity of about 100 liters. The water though can be used only for hand wash and for washing of ablutions. It cannot substitute a flush.
The Re-circulating tank is a water saver. In this tank, fresh water (about 10-20 liters) is run into the waste tank. The bio-chemical is then added to this water, which turns it blue. The unit is now ready for use. As the unit is used the solid waste settles down to the bottom of the waste tank leaving the clear water above.
The unit has a re-circulating system, where as the name suggests - the clear water is re-circulated from time to time when the flush is engaged and clear water, which is blue in colour, effectively arrives in the cistern and cleans it. After a number of uses, the colour of the water starts becoming yellowish, this is an indicator to inform the cleaning service for evacuation.
Fresh water Flush is exactly like the flushing systems in our homes. There is a separate water tank, which is provided inside the unit and every time the flush is engaged, fresh water arrives in the cistern and cleans the toilet bowl and settles in the waste tank. The waste & water is not reused like in the re-circulating tank.

Can the unit be attached to a sewer line/septic tank and external source of water if required?
If required the unit can be attached to the sewer line or septic tank.