Hilton solve your blocked drain fast! To provide the best service to all of our clients, every day, by everyone. Your neighbourhood boiler installation and repair services! Unfortunately, there are some downsides to the compact convenience of the combi boiler, and in some cases, it may not be the most effective choice for heating your home. It works i used product in bathtub where water was running out slow water is flowing freely again! Emergency or not, we want you to have.