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Author Topic: Question about header tank  (Read 7130 times)

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Offline Jolene

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Question about header tank
« on: November 09, 2010, 06:40:35 PM »
Hello

During kitchen rennovations we had a plumber remove our header tank in our attic.
Since then the hot water pressure is extremely poor (showers are a nightmare).  Cold water flow is fine.

Any tips??

Many thanks
Jolene

Linkback: https://www.plumbers.nz/ask-plumbers-public/2/question-about-header-tank/531/

Offline spud

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Question about header tank
« Reply #1 on: November 09, 2010, 09:57:06 PM »
Yep. Ring the plumber and ask him.

Offline Plumber

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Question about header tank
« Reply #2 on: November 09, 2010, 11:17:18 PM »
Have had this happen to me before, the plumber probably didn't notice that the header tank is what creates the pressure. Basically Cold water is dumped in the header tank and the "head"  is your working pressure. When is comes out of the header tank it acts as the water main to the Hot water cylinder and the pressure it creates with the "head" onto your Hot water cylinder is the pressure you will get in the shower. confusing??

To keep it simple... If he removed the header tank then he should of run the water feed directly to the HWC (not to header tank) to make up for the loss in pressure. He would then use a pressure reducing valve set to the old pressure and open vent to the appropriate height (or use a vacuum valve). The pressure would then be the same as before.

Maybe he did all this correctly and only has to increase the pressure on the valve?

Hope this helps

Plumber
Please note that the advice I am giving is only my opinion and not necessarily a fact.  Please refer to our terms and conditions.

Offline spud

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Re: Question about header tank
« Reply #3 on: November 10, 2010, 07:34:01 AM »
The plumber probably didn't realize that the header tank creates the pressure? Geez. Maybe the builder didn't realize that nails are meant to hold timber together as well!

Offline Plumber

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Re: Question about header tank
« Reply #4 on: November 10, 2010, 08:54:25 AM »
Maybe the guy wasn't a plumber. You would check and make sure the pressure is ok before you leave the job aye  :-X

Offline Jaxcat

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Re: Question about header tank
« Reply #5 on: November 10, 2010, 10:54:37 AM »
To check if he WAS/IS a plumber you can visit www.pgdb.co.nz - go to the public section and check the register - type in the person's last name and see if he has a licence. 
Have you learned lessons only of those who admired you, and were tender with you, and stood aside for you?  Have you not learned great lessons from those who braced themselves against you, and disputed the passage with you?  (Walt Whitman 1819-1891)  American Poet


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