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3342 posts

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  Reply # 2080184 28-Aug-2018 11:22
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Sounds like the plumber hasn't yet tested at the meter outlet yet. He needs to do so to get a known good result.

Then that concrete slurry will probably have to be removed to access where the main enters the house for further testing.

There could be another limiting valve that is buried. Which has failed. Have seen this lots of times myself.





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  Reply # 2080489 28-Aug-2018 21:45
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I just wrote a very long message but Geekzone decided to time out my session and loose the whole message I was writing... so here is the short version:

 

install an expansion vessel (a.k.a "hydraulic accumulator") and you will also need a check valve on the pipe coming to the house before any tap or branch tees off. Go for the largest one you can afford, I would say 100 - 120L at the minimum.


 
 
 
 


3342 posts

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  Reply # 2080498 28-Aug-2018 22:54
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aucklander:

I just wrote a very long message but Geekzone decided to time out my session and loose the whole message I was writing... so here is the short version:


install an expansion vessel (a.k.a "hydraulic accumulator") and you will also need a check valve on the pipe coming to the house before any tap or branch tees off. Go for the largest one you can afford, I would say 100 - 120L at the minimum.




Accumulator tanks are very expensive on a cost Vs storage basis. If it really is too difficult to fix the watermain properly. Far better to just use the watermain to keep a tank filled. Then connect a pump to the tank outlet.

I almost had to do the above on a job for a commercial kitchen. Watermain only provided 8L per minute to an open outlet. 18L per minute is required by the building code. Landlord didn't want to pay to upgrade the pipe, tenant didn't either. Especially as the pipe ran through a neighbouring property.

It didn't matter in the end, as the council inspector didn't bother checking that the available flow complied with the building code. And there was still just enough pressure for the spray rinse tap to operate.







84 posts

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  Reply # 2081779 31-Aug-2018 09:12
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aucklander:

 



It didn't matter in the end, as the council inspector didn't bother checking that the available flow complied with the building code. And there was still just enough pressure for the spray rinse tap to operate.

 

sounds like going to be massive for me 


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  Reply # 2081836 31-Aug-2018 11:32
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aucklander: I just wrote a very long message but Geekzone decided to time out my session and loose the whole message I was writing... so here is the short version:

 

Recommendation: I always pre-type long posts into a basic text edit program first then copy & paste into forums due to that very reason of time outs. Plus, like GZ, some forums do not have a preview facility.





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