I had purchased cera cisterns for three bath rooms, problem started within a month of installation, water started to leak in commode, i called the rep and gt if fixed for free as product was in warranty, but i started getting more problems after completion of warranty, water getting blocked, sometimes water continue to leak in commode etc. If u buy cera then get ready to spend on service every 3 months atleast, they sell low quality products without proper design and reliability, am having a nightmare with their products. They charge 250rs per visit, if u have three bathrooms then get ready to spend artist 1000rs in service cost and another 1500 on spares every year, u dont know when the product fails. It is not a install and forget product, i regret buying it.
And min waiting time is two days for service to be availed, dont spend ur hard earned money on cera products.