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 Bypass Roof Water Tank Piping, How to?

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lencent
post Nov 26 2018, 10:40 PM

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QUOTE(aeiou228 @ Feb 10 2015, 10:06 PM)
Better think twice before you do it. You get higher water pressure but it comes with disadvantages too such as:
1. High Chlorine content.
2. Internal/concealed in the wall PVC pipe will leak due to high water pressure over long period of time.(worse nightmare)
3. W/C stopper and hand bidet can't stand the water high pressure.

There were discussions on this topic here:
https://forum.lowyat.net/index.php?showtopic=3466279&hl
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Sorry to revive an old thread... What is the reason that the direct water supply will have higher chlorine content compared to water tank supply? Isn't it suppose the same as the water is from the same source?

Possible to install a regulator after the water inlet to control the water pressure before the supply goes into the house piping, i.e.: install a pressure regulator after the POE filter?

Just thinking how to increase my house water pressure without adding a pump, thinking to install a bypass before the inlet of the water tank to the outlet of the water tank. A check valve + control valve at the bypass piping and the outlet of the water tank will do the trick to avoid overflooding the water tank.

To avoid stagnant water, the supply to water tank will be closed every now and then by the stop cork feeding water to the tank to use up the water in the tank before refilling the water tank again.

Have not consulted any plumber yet... just some ideas after reading through some threads here tongue.gif

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This post has been edited by lencent: Nov 26 2018, 10:52 PM
lencent
post Nov 27 2018, 08:17 AM

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QUOTE(aeiou228 @ Nov 27 2018, 06:36 AM)
Chlorine in the water tank evaporated, so no more chlorine.
If you shower with direct water, you'll absorb the chlorine thru skin. Try do a chlorine test on water direct from the tap and another test after you soak your hand in the water for 1 min. I think there are some YouTube videos on this.

Yes,you can install pressure regulator or simply regulate it with the main control valve outside to prevent pressure built-up in the concealed piping but the problem is, the water pressure is only good for one water outlet at a time.

Best is to install water pump after water tank, you'll get two separate pressure source, i.e. you showering in the bathroom and  your wife washing dishes in the kitchen or washing machine doing the laundry , no pressure drop, no sudden hot water scalding and most importantly no pressure built-up in the internal piping.
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Thank you for the clarification and in-sight to using direct water source which I have not thought about.
Will have to think hard between the two options, water pump or direct water source...
lencent
post Nov 27 2018, 09:18 AM

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QUOTE(aeiou228 @ Nov 27 2018, 08:48 AM)
Better don't mod to direct water. Chlorine causing hair thinning. Please Google keywords "chlorine hair loss"
Aquarium shop sells chlorine tester like RM2, give a try.
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wow... a quick googling on chlorine effects on health show up quite a number of findings/ studies. Will take that into consideration. Thank you. : )
lencent
post Nov 27 2018, 01:36 PM

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QUOTE(cherroy @ Nov 27 2018, 11:22 AM)
Install a booster pump is much easier solution, instead of reconnecting the pipe to the direct source.

Direct source pressure may be fluctuating as well, at night, pressure normally higher, which may premature result valve leaking issue, concealed pipe leaking (although this can be mitigated by pressure regulator, but installing mean extra money needs to fork out, not to mention pressure regulator does wear out over the time as well).
While for peak water usage time, like evening, pressure may drop due to many users open their tap.

Also, if direct source water pressure is too low time, you suffer low pressure as well.
While if install booster pump, you have no such an issue

So more cost effective and simple way is to install booster pump.

Summarise, 2 way to increase pressure

a) install booster pump, just minor work needed.

b) reconnecting to direct source that need to redesign/reconnect piping + pressure regulator, no guarantee to have good pressure if direct source pressure is poor.
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I wouldn't say installing water pump is cost effective, it is expected to perform as required and the initial cost is high not to forget the follow up maintenance cost. It's a hassle-free solution for those who can afford.

Connecting to direct water source has it cons as highlighted, the sudden surge/ drop of water pressure is a concern for me, still thinking what could be done.

Good stuff never come cheap and cheap stuff does not do a good job, most of the time. Need to find a balance between the two and most importantly depends on how much left for the renovation budget tongue.gif tongue.gif

For future proofing, i planning to pull a power outlet to the water tank first in case a booster pump is necessary.
lencent
post Nov 27 2018, 06:00 PM

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QUOTE(cherroy @ Nov 27 2018, 05:20 PM)
This can be easily solved by installing pressure regulator, but pressure regulator only works to cut off the too high pressure part of story.
For low pressure part of story, pressure regulator can't do you anything.

That's why I suggested, in order to have a good water pressure, installing a booster pump to have a constant steady pressure is always preferred.
As you never know how will be the direct supply pressure, it does fluctuating all the time, as one main water supply is shared across the housing area generally.

Booster pump + pressure tank installation combo is the good solution nowadays.
Pressure tank eliminate the constant needs to start up the pump whenever you open the tap everytime, that reduces the wear and tear of the booster pump, and electricity consumption.
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yes, fully agree that is the best solution, provided got sufficient budget tongue.gif


 

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