Plumber Job - Gonubie, EC, 5256

Good Day! I'm am experiencing a problem with my geysers (1 x outside building and 1 x main house). They are not working properly, the geyser in the outside building doesn't warm up water, but the switch is working fine. In the main house, there is a problem with the geyser switch, it doesn't work properly so I'm not sure whether the problem is the switch or the geyser. The bath tub in the main water is not working properly, it takes a lot of time to drain water out of the bath tub. Outside building toilet pipe leaks when flushing.