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How to desilt concealed water pipes from overhead tanks

Asked Jun 14, 2011, 11:47 AM — 5 Answers
Hi guys,

Would like help with this, we have a overhead tank from which water is distributed to various bathrooms and other locations through concealed PVC pipes(cold water) and GI Pipes for hot water. The pipe lines are 10 years old, due to the hardness of the water, we are facing a problem of very low pressure in the water coming out of the taps.
My question is whether there is any way in which we could de-silt the pipes either by using a chemical or any other home remedy.
The overhead water tank has a capacity of 1000 liter.
Hoping there would be a solution which does not require us to lay new pipes all the way.
Regards
Shakeer

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5 Answers
ma0641's Avatar
ma0641 Posts: 6,237, Reputation: 2489
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#2

Jun 14, 2011, 03:32 PM
You are on a gravity system I suppose. What country are you in, I'm not familiar with "GI" piping? First, I would remove all of the aerators on the faucets and make sure they are clean, next remove all of the faucet stems and make sure they are clear. If that doesn't help, you may have to drain the tank and then use Acetic Acid(strong Vinegar) or a similar product used to clean out water softeners.
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mishakeer Posts: 2, Reputation: 10
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#3

Jun 16, 2011, 09:45 PM
Comment on ma0641's post
Quote:
Originally Posted by ma0641 View Post
You are on a gravity system I suppose. What country are you in, I'm not familiar with "GI" piping? First, I would remove all of the aerators on the faucets and make sure they are clean, next remove all of the faucet stems and make sure they are clear. If that doesn't help, you may have to drain the tank and then use Acetic Acid(strong Vinegar) or a similar product used to clean out water softeners.
sorry for the delay, we are based in india, we are on a gravity system, GI means Galvanised Iron, we do regularly clean the aerators, will try the cleaning the stems as well, the water tank is made have plastic,if we do use the acetic acid, will it damage the plastic tank, further after the acetic acid use do we need to clean the tank again or can we start using it straight away
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ma0641's Avatar
ma0641 Posts: 6,237, Reputation: 2489
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#4

Jun 17, 2011, 09:12 AM
Acetic acid, diluted, will not damage the tank. You will need to rinse after cleaning or your water will taste like vinegar. Hope it works and let us know the outcome.
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som70hak Posts: 1, Reputation: 10
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#5

Nov 9, 2011, 10:23 AM
Change your Hot Pipe syatem with EPVC hot water solution of Kasta pipes. I am using it at Indore successfully.
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muditsood's Avatar
muditsood Posts: 1, Reputation: 1
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#6

Apr 4, 2012, 10:49 PM
how much acetic acid is to be uesd for 1000litre tank
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