My house is missing a hose bibb at the front of the house, there are two all the way in the back of the house. To get water to the front of the house (for watering my lawn and washing my car), I have two garden hoses connected to the back to the front. Now I'm thinking of installing a hose bibb on the front of the house. I have existing 3/4" PVC pipe to the front of the house from the old HVAC. In the picture below is the pipe, lower right. It's been cut off when they installed my new HVAC:
This pipe connects to the outside. Originally this pipe removed water from the old HVAC:
Here's the water supply:
I was thinking to connect a water supply valve to the cut off pipe in the first image. Then running the line to the water supply at the top of the water heater (which goes out to the sprinkler system, also broken). Can any one please give me some advice about how to connect the pipe to the water supply. Thanks.