Tighten Union and Plan for Future Maintenance

What happens here

After both press connections are successfully made, completing the pipe section that incorporates a union fitting, the presenter indicates that the final step is to tighten this union. Although the actual tightening with a wrench is not shown, this step is essential for securing the final connection. He highlights the benefit of incorporating a union and flexible supplies in such an installation: it significantly simplifies future maintenance or replacement of the water heater, as it allows for easy disconnection of the unit without needing to cut or re-press pipes. This design ensures that if a leak were to occur in the future at the water heater, it could be serviced or replaced with minimal disruption to the existing piping.