i bought one unit of "tsunami water pump" at a stall in tesco puchong (next to JCO Donut i think)

so far so good, 0.65hp able to support 2 showers & 4 taps...at least the water still runs the shower whenever someone else's using the taps...

This post has been edited by hunt2sp: Jul 8 2013, 02:30 AM

depends on your requirements..

Case 1: some would have problem pumping water from the main source (supplier/well & etc) to their tank, so they'll need a pump to pull it from the source & feed to the main tank..

Case 2:some would have no problem getting water from the source to the tank, but having problems with the pressure of the house piping. One of the symptom would be the loss of water pressure whenever all taps & showers are being used simultaneously... in this case, they'll need a water pump to regulate the water pipe pressure for the whole house..

brother (in toilet):
"hey, who's using the water,.... i am bathing here..got shampoo in my eyes..arrgghhh..!"

sister (at the kitchen):
"i am doing my dishes...shut up or come here & do it for me..!"

before getting a water pump, first have to check if there's a leak at any point of the piping too...look for "swollen" walls or any constantly-damped surfaces with molds...things like that

IMO, water pump of your heater helps to pull water from your tank, or direct from the source to ensure there's enough amount of water to be heated...it still depends on the overall internal piping of your house to get optimal pressure..