Why is my drinking water have a bad taste? That is because your water it’s not purified. If you can purify your water to 0-10 hardness on scale (0-500) and contaminant (chemicals, bacterial, mature, etc..) to 0-60 on scale (0-1500), you will find that water taste so crisp. In order to get excellent purified water, you need to install a good filtration system or buy water from local water stores/services because they have strong filtration system. To test your water, you can buy a Digital TDS EC Meter + PH Tester $16.55. Please google because I’m not selling/promoting anything here. I don’t want to be biased against anyone or company.
When you installed an expensive Ionizer machine ($3,000+ USD) into faucet or water line with weak filtration system, Well… Very sorry to tell you that you are drinking modified PH waters with some or all contaminants. Again filter your water to around 40-60 PPM should help obtain the best best tasting water for for PH water.
Note: Expensive machine might be a better investment because of its warranty, reliable, and have many functions. Notice I don’t mention/judge brand. That’s your job. You need to research before you buy.
Read more about Drinking Water Contaminants at https://oehha.ca.gov/calenviroscreen/indicator/drinking-water-contaminants.