You should start by looking at the capacity. You find that most of the purifiers come with storage tanks to store purified water. The number of people that will be willing to use the purified water for drinking will greatly determine the capacity of the storage tank you go for. Talking of capacity you find that people with small families can be well served with a storage capacity of at least 4 litres unlike large families which needs a storage capacity of 10 litres. Another thing is that we have some automated water purifiers which can detect when the volume of water goes down and refill it. When you do this perfectly you will be in a better position to select one of the convenient water purifiers.
Not only that but you should also check if it is electric or non-electric. You find that places with constant power interruption are not fit with electric water purifiers but they need the ones that can operate even without electricity. Such places can be well served with gravity based water purifiers since they don’t need electrify to operate. Another advantage with gravity based purifiers is low maintenance cost. On the other hand, electric purifiers are more efficient in purifying water than the non-electric purifiers.
Maintenance cost and after sales services is another thing that should guide you in choosing water purifier. Maintenance is very essential in all the equipment not only water purifiers. And without it the water purifier will not function as required. Normally, the supplies of the water purifiers always provide you with free or affordable after sales service. You should also know that the cost of maintaining an electric water purifier is much higher than non-electric.
Another thing that you should consider is installation and a warranty. One thing that you can do is to buy with the companies that will not charge you any fee in installation of water purifier. This is because there are other companies that will bill you a lot of money on the installation. Another thing is a warranty which will allow you to use water purifier for a given period of time and return if it is not functioning well.
Lastly, you should also check ratings and the reviews. One thing that you should know is that when you want the best water purifier you should choose the one that is highly rated. Another thing that you should check is reviews which will allow you to know what the clients are saying about different types of purifiers. The best water purifier should be the one with many positive comments as this shows that the people are satisfied with that particular product.