Sums it up pretty much in principle. The vibration will be transmitted outwards from where the pump is located. If not attenuated, it might be nuisance at best or the pump night be prone to "walking" or be transmitted along the piping. For that where piping is known to hit the other part of the roof support, place a small piece of anti vibration mat (cut to size) in between to shield it from this tendency.

Note: everyone upstairs might still hear the pump's soft humming when it's operating. That can't be avoided but if your plumber has done something marvellous that reduced the humming such that the only time you're aware that it's operating is when you're directly under it, do share. I want to know how also.

Do you know which shops to find these kind of vibration mats?

Vibration mat.

Like this can?

http://www.lazada.com.my/8pcs-washing-mach....739810cfvVH2yt

Guys do i need to off my water pump when not in use? Or can leave it on all year long

Hi guys, wondering whats the price range for a 1.0 HP Grundfos water pump?

Usually, I turn it off when not in use.

On and off wont cause damage to the machine? How long you have been on and off?

PMed

FOr normal landed houses, it is quite impossible for water to be too weak until the instant heater pump could not start. As all houses are using tank's water, hence all houses would have +- the same pressure (Gravity pressure). Few possibilities

1) Old house with clogged pipes
2) U install a rain shower system for your instant heater
3) Filter at the heater is clogged

I removed my house's tank few years back due to leakage.
Now I'm installing one 10" and one 8" rain shower system, and have another bathroom downstairs with instant heater.
Is it necessary to get a pump?

if ur main your main water supply is 2.5bar and above u can go ahead without a pump

Most probably air lock, try opening the nut above the water inlet, let the water flow out like 5 sec then tighten it back. Turn off the pump before u do this and get some cloth to wipe it.

I have a situation which just recently happened.

I turn on a water outlet and very low water pressure comes from that outlet. in other words, the pump didn't activate. when i turn on another water outlet, the pump activates and I start getting good pressure form both outlets. each time i have to open another outlet to activate the pump ( it takes 2 outlets to be opened to activate the pump).

This happens in all locations in my house. any idea how to solve this, is this a pump problem, if yes which part of the pump has malfunctioned? I don't think it's the motor as the pump still works, albeit, with the workaround method above.

Zheilwane, does this applicable to PM model as well, i found out my pump also having the issue where the pump delayed start.. i turn on the tap but water flow without pressure, it has to take a while (30 sec) before the pump kicks in. Sometime i will have to turn on other tap to "initiate" it

1) this only happen for PT (with a tank), PM should not have this issue
2) If the main water bypass is ON and ur incoming pressure is quite strong, the pump wont kick in until pressure drop to certain level (hence u nd to turn on two taps) if that is the case, turn off the main water bypass valve
3) May b PM is faulty

i see.. if thats the case i am seeing 3) as the prossibility.. do you have any idea how much is going to cost?

1) PM model
2) main water pressure should be stable as its getting connected from water storage tank.
Thank you bro.