Sifu, need to check the price for piping quotation as below (double storey house):

To modify the main supply to the main water tank and backyard of the house (kitchen area) - RM1300
To change all the piping of 3 toilet with conceal piping - RM2500
To install (bybass water system) and test water pump - RM300

How this price above? I really no idea with the price whether is expensive onot.
1. Currently the old house I bought i running with old steel piping, is it recommend to change all the piping?
2. What kind of piping I should use? any specification?
3. Any other things I need to take attention??

Thank you....