Before turning off the geyser in summer season, you should use MCB instead of Switch. The specialty of MCB is that it shuts down before any electricity fault occurs. This is the reason why most people use it. The specialty of MCB is that it also helps a lot in saving electricity. Generally people start using 20Amp switch, but this should not be done at all.
Main Wire Disconnect-
Before turning off the geyser, you should also remove its main wire. It is beneficial that if you switch on by mistake, then you will not have much trouble because the geyser will never turn on. Also, you will be saved from having any electricity fault. The biggest advantage of removing the main wire is that it also saves electricity. It is generally seen that if this is not done, the geyser gets heated even in the summer season.
Should not always be on-
Water Geyser should not always be kept on. Usually people leave the geyser on even in the summer season. If you are also doing the same mistake, then it should be changed. Even if your geyser is not in use, you cannot always keep it on. The biggest disadvantage of keeping it always on is that it can also explode the geyser.