One question here, i am thinking to install a Grundfos water pump but i was told by a Syabas contractor who came and check whether my upstairs bathroom water flow was slow is because of internal water pipe stuck or rust but after they check and say was nothing wrong but suspect there's a internal leakage and instead ask me to install a separate water pipe... Is there anyone in Klang Valley that can check and identify internal water pipe leakage via Infrared Equipment which i read about in the internet that was use in US and UK plumber to identify water leakage... Anyone with experience in this area care to share and help me out, i just want to make sure and if there's really leakage and i install a water pump it would surely make my situation worst... But the Syabas contractor is wrong then install a water pump should solved all my problem of slow water flow in my bathroom =)

Ok, thanks Zheilwane for your reply, appreciate that, ok noted i will use PM instead =)