TOP-PIPE HDPE Corrugated Pipes can be jointed by either using socketed pipes with rubber rings, or using plain-ended pipes with a double-socket coupler and rubber rings. Both methods are push-to-fit and the rubber rings provide a tight seal.
To ensure a close fit between the pipes a tensioner should be used to pull the pipes together. Alternatively, pipes can be pushed together using a pry bar or a digger. For such installations, a sacrificial stub should be used, so as not to damage the socket-end of the pipe being pushed.