40psi........

condo/ apartment normally have PRV ( pressure reducing valve) to control the pressure @ +-50 psi.
but if your house @ top floor, u'll need pump too

and pay extra water bill, power mean use more water

Adding a tank from pt model won't reduce the pressue but it definitely reduce the motor frequently start stop.

The hammering occur normally due to your piping not secure/fix, the abs pipe vibrate when the pump start, stop. Try add more bracket to hold the pipes ...


Nothing will affect the warranty as the tank can be install away from the pump, just modify the out going main pipe after the pump with tee and add a stopcock before connect to the tank.

This post has been edited by skng03: Mar 15 2012, 11:53 AM

yup, my statement a bit confusing...


The additional tank shall connect to the out going main pipe after the pump, NOT the supply main

anyway, i edited my last post

haha.. that is why i said put a stopcock before connect to the tank, i pump the air at petrol station

Noemally 40psi

very common problem if use pressure pump, i found the bidet from DOE which come with black color flex. hose can stand high pressure, have this in my old man house with constantly +-50psi for few years still not fail those nice chrome color bidet will fail in few months

But having such high pressure @ bidet is going to hurt your ASSSH

Tot u were talking about the auto bypass @ the pump then i presume your incoming pressure should be good enough for your kitchen tap else your use a mixer in kitchen lor, cold water from main, hot water from pump

Nice or maintenance free, your choice......
Want look nice, prepare to change the flex. Hose in few month time.
I change them few time only found this DOE bidet.

But my own house still use chrome one, nice mar...... but i limit my pump pressure at 30psiﹰ

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Added on April 6, 2012, 10:01 pmSince your main pressure not high, your solar heater/ water heater must connect to pump lar, else mana ada shok when taking shower..

This post has been edited by skng03: Apr 6 2012, 10:01 PM

add another one.... don't ever stingy on your shoe

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Added on April 11, 2012, 1:07 amOut of topic...hehe

This post has been edited by skng03: Apr 11 2012, 01:07 AM

download it and use your pics viewer to rotate lor

cheap pump, small flow rate , frequent start stop quite annoying.

if Rm400 for installation only= expensive,

additional piping for the pump installation or @ other area?

rm400 to install the pump only is expensive, imagine just cut off the main pipe from water tank, connect to pump inlet and outlet with few fitting

zean's diagram include additional non return valve / by pass, rm400 is reasaonale

shower head flow normally <10L/m, rain shower 9-14 L/m, eco friendly/ save water type <= 9L/m

Grunfos pump some parts also made by gemini, look at ch-pt's pressure switch…