Bought the Grundfos pump from zheilwane during Merdeka Sales, really good price.
Installed and test paip leakage today, so far so good...
The pressure is pretty high and is really good for the rain shower setup (bought from zheilwane also) ....
Thank you zheilwane and family who served me well while I shopping at his shop....
Thumb up for u....

From my experience,if you are planning to install autopump,you just need to make sure your pump is not running when you have close all the pipe that using water from tank after installation.if the pump still running,then there is a leakage.. =)