The best solutions to your plumbing problems can be found by speaking to the plumber directly. Do not rely on online material which can sometimes be hard to follow.
Plumbing is an art of expert knowledge gained with experience in fitting boilers, central heating and bathrooms. The plumber himself is the best person in the job who knows and understands the systems installed in your home or office.
Speak to your local plumber, who knows more about plumbing solutions.