would like to thank this forum/topic for all the wonderful discussion on pump/tanks and etc..

and here is my big ass tank to solve all my water problems until LAP/syabas off the main

thanks to zheilwane for his customer service..

BIG ASS TANK IS BIGGGG

Yup, it is DAMN powerful and you can now enjoy ur shower to the max. For bidet, just turn ur angle valve to half den it should b OK d.

Btw, how is the noise level?

zean,
question:
1. when all taps/showers are off, when we flick on the switch to the pump, how long do we expect the pump to run before turning completely silent? would the pump turn completely silent in the first place?
2. if the pump still runs, what do we do?
3. if the pump do not run, is it advisable to leave it on at all time? or just run it whenever we want to take shower only?
thanks.

thanks weikee.
back to my Q1, is it meant to be totally silent as in the pump totally not running when all taps are off after a short while? or do we still hear a humming sound? reason that i'm asking is i recall my in law place always have a noticable sound whenever the pump switch is on. but so far so good, no problem on dampness of any wall. been some time already.

Q2. what do we do?

A3. noted.

any opinion on tsunami water pump. Saw the unit selling for 1k++ with those tank on top. .5kw  unit....

the grundfos for 1k is it the model that continuously running or the unit with the tank on top ....dunno what it called...

Yes, I realise this is a possibility after looking at the drawing updated by Zane!!!!!

the pump can be on 24/7 cause there is a pressure switch..

regarding the NRV , how good is the "seal" ?

usually the pump pressure is higher than incoming.. one..

if the NRV seal isn't good.. the meter run terbalik and get no water at all ? or its somehow equalize ?

cause im planning to do a "auto-bypass" for pump when got power trip/no electric..

I am using the Grundfos PC model, without the accumulator tank. The pump is sure vv powerful to 4 Bath. Just want to ask. How do I reduce the water hamering when the pump cut in/out. worried if the ABS piping leak. Can I install the accumulator tank (From PT) on my  PC model pump to reduce the intial pressure? Too frequent pump on/off, even if I open the tap. Hope you can advise me how to modify if can help to reduce the sudden pressure surge.

The service is to refill the air pressure like car tire pressure it will lose air pressure. You shouild do it yourself like tires are you going to ask mechanic to do it for you? Only once a yr ma. Use a manual pump/bycicle pump. just shut the incoming main to the pump and let go the water from your bathroom and empty it where the pipe from the pump to the outlets pressure is zero then you pump the tank to the desire pressure by using a tire pressure guage buy from car accesories shop.

Thanks for the infor. I m in the middle of design my water piping system. Collecting some specification and infor.

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