Where does the mains water back-up feed into?
In a Non-pressurized header tank system mains water back up is fed directly into the break tank. For a Pressurised system the mains back-up is fed into the underground storage tank. The combi unit has a mains water top-up directly into the unit – in all cases, this connection is made via a WRAS approved Regulation approved airbrake. For help choosing which type of system is best for your site to ask our estimating team on 01636 815254.