Hello
The best way to choose an air cooler is to check the availability of the service provided by the company which manufactured it. As air coolers are not proven design it may not work when you pour water into the machine expecting some cool air as mentioned any of their manual.
Though symphony is there for some time in this industry (my guess) they are not confident about their own design of the air cooler. They don’t provide any phone number to contact them. There is only one (3 line)address of symphony, which is at ahemadabad and no phone number.
They say they will not accept the machine once you pour water into it and try to switch it on!
Imagine you have to test an air cooler with out filling it with water BUT use it by filling it with water…!!!@
The result of filling the air cooler with water can be any thing according to your luck!!!
Srinispeak