using the term powerflush suggests that the system is old and has a decent amount of sludge/contamination so you would def do this first. Did they have a large pump/machine running most of the day?
as for the gas leak, well its hard to say without you telling us what was leaking. It could have been a permissable drop that was discoverd on existing pipework the second day after smelling gas in a certain area of the house? What seems to be causing issues is a lack or poor level of communication.
as for the gas leak, well its hard to say without you telling us what was leaking. It could have been a permissable drop that was discoverd on existing pipework the second day after smelling gas in a certain area of the house? What seems to be causing issues is a lack or poor level of communication.