Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


Mad Scientist
18624 posts

Uber Geek
+1 received by user: 2367

Trusted
Lifetime subscriber

Topic # 112934 27-Dec-2012 23:44
Send private message

Suddenly we had a leak from the roof ...

This is what we found:

1) From a pipe with hot water
2) The pipe goes all the way up the roof to the roof itself
3) The pipe comes from the TOP of the hot water cylinder (i think)

We turned off the valve feeding cold water into the hot water cylinder
The in-laws' cylinder is very old ... not sure what brand
It is a low water pressure kind (no jet shower in their place)
... if that helps ....

Will that stop the problem (I can't see a hot water outlet valve to turn off!)?

What the hell is the pipe that goes to the roof itself? Can't be the vent? If it's the vent why the hell is it leaking right at the roof itself?

THanks for any hints ...

I know we have to call a plumber tomorrow but just curious ...

Edit: image

View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
21241 posts

Uber Geek
+1 received by user: 4273

Trusted
Subscriber

  Reply # 737901 27-Dec-2012 23:52
Send private message

they crack where they flex going thru the roof since they are usually unsupported and flap around in the wind. its the overflow to allow for expansion so the waterlevel nomally sits just below the very top of the pipe when cold and will overflow with expansion




Richard rich.ms



Mad Scientist
18624 posts

Uber Geek
+1 received by user: 2367

Trusted
Lifetime subscriber

  Reply # 737904 28-Dec-2012 00:06
Send private message

possible to DIY fix if it's only the vent?

13991 posts

Uber Geek
+1 received by user: 2494

Trusted
Subscriber

  Reply # 737928 28-Dec-2012 07:58
Send private message

Now I don't know much about this stuff and I could be completely wrong, but I thought the pipe's for boil-over, if something goes wrong hot water goes out it. Fix it by turning off the hot water until the plumber gets there, and they may need a new cylinder.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


1572 posts

Uber Geek
+1 received by user: 311

Lifetime subscriber

  Reply # 737940 28-Dec-2012 08:29
Send private message

could be a couple of things

1) thermostat is stuck on causing the water to boil over
2) ajax valve needs adjustment or is faulty causing it to add more water to the cylinder  when it doesn't causing it to overflow.

Judging by the age possibly the ajax valve, keep in mind hot water cylinders that are that old tend to be near the end of their useful life and may suffer extra damage when worked on, so be prepared for the extra expense of a new cylinder



Mad Scientist
18624 posts

Uber Geek
+1 received by user: 2367

Trusted
Lifetime subscriber

  Reply # 737943 28-Dec-2012 08:31
Send private message

ah makes sense :)

plumber on the way ...

thanks for the e-pinions

we are all glad it happened before we went away (in a few days' time) phew

1927 posts

Uber Geek
+1 received by user: 128


  Reply # 737992 28-Dec-2012 11:16
Send private message

joker97: ah makes sense :)

plumber on the way ...

thanks for the e-pinions

we are all glad it happened before we went away (in a few days' time) phew


It will be the vent pipe which is usually filled to the top as that's where you get your hot water pressure from. The higher the pipe the higher the pressure. More modern installations may have a pressure relief valve on the end to achieve max pressure from the tank.
Don't forget to claim on your insurance if the bill is greater than your excess. It's probably damage caused by recent high winds flexing the pipe. May be other damage you haven't found yet.

3267 posts

Uber Geek
+1 received by user: 77

Trusted

  Reply # 740108 4-Jan-2013 11:51
Send private message

You can install a pressure booster pump on the cylinder outlet and then adjust the ajax (inlet pressure limiting) valve for lower "head" (height of water pressure). This way you have less water sitting in the pipe above the roof but the pump will boost the pressure when you open a tap.

Note it is normal for the pipe to overflow a little bit as the cylinder gets to temperature and water expands, but not all the time.

Some people when these things start failing they would upgrade to mains pressure but the low pressure parts are cheap where as a high pressure upgrade is a high cost and you will suddenly find leaks at many of your fittings fittings.

I guess the plumber was there already, but I do suggest if the cylinder is getting old then replace it. Not worth the water flooding your home. We've had that once, fortunately only a few boxed got wet as we did not have carpet and the old deformed timber boards channelled the water towards the bathroom. Or add a drain hole next to your cylinder. If it good to look at these things now that your attention is on it.




You can never have enough Volvos!


13991 posts

Uber Geek
+1 received by user: 2494

Trusted
Subscriber

  Reply # 743641 12-Jan-2013 09:07
Send private message

We just upgraded to mains pressure from an old low pressure system. We also moved the cylinder from a cupboard in the bathroom into the ceiling. There were no problems with the old fittings in the kitchen and laundry, and we have all new fittings in the bathroom. The shower's MUCH better, everything better, even the laundry finishes more quickly.

Under the cylinder up in the roof there's a big plastic tray that's plumbed into some kind of a waste tube. Any leaks will just drain away, and I'll take a look occasionally to make sure there's no water in there.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer




Mad Scientist
18624 posts

Uber Geek
+1 received by user: 2367

Trusted
Lifetime subscriber

  Reply # 743688 12-Jan-2013 10:17
Send private message

How much did all that cost? Cheers

3267 posts

Uber Geek
+1 received by user: 77

Trusted

  Reply # 743740 12-Jan-2013 12:43
Send private message

Timmmay, that is the standard install in South Africa. Good to see it happening more often here as there are a number of advantages. The drain will catch small leaks. Just don't let it leak for too long as it will leak faster and flood the ceiling. In South Africa the drain goes into the rainwater spouting so you do not notice when it starts leaking.




You can never have enough Volvos!


13991 posts

Uber Geek
+1 received by user: 2494

Trusted
Subscriber

  Reply # 743777 12-Jan-2013 14:46
Send private message

joker97: How much did all that cost? Cheers


Who are you asking?




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer




Mad Scientist
18624 posts

Uber Geek
+1 received by user: 2367

Trusted
Lifetime subscriber

  Reply # 743840 12-Jan-2013 19:16
Send private message

timmmay:
joker97: How much did all that cost? Cheers


Who are you asking?


You. Thanks :)

13991 posts

Uber Geek
+1 received by user: 2494

Trusted
Subscriber

  Reply # 743843 12-Jan-2013 19:20
Send private message

I don't know what just the plumbing work cost. I spent $40K on a new bathroom. Upgrading to mains pressure cylinder is the cylinder cost, half a day for a plumber, depending if anything else needs to be done. $5K perhaps? You'd have to ask a plumber.

We had a pressure reducing thing put in, we had 1000 of some unit at the street, reduced to 500 so as not to blow out the tapware. All the old stuff was fine.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer




Mad Scientist
18624 posts

Uber Geek
+1 received by user: 2367

Trusted
Lifetime subscriber

  Reply # 743845 12-Jan-2013 19:30
Send private message

$%#@ ok i'm not going to buy and renovate! will try to buy renovated!

13991 posts

Uber Geek
+1 received by user: 2494

Trusted
Subscriber

  Reply # 743849 12-Jan-2013 20:00
Send private message

You could do it for a lot less, but we went high end. No gold, but tiles, good heating, great shower, good lighting, replumb, rewire, under floor heating, mirrors, complete re line of the room, custom made cupboards, etc.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


 1 | 2
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29


Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.