![Thanks](https://www.renovateforums.com.au/dbtech/thanks/images/thanks.png)
![Likes](https://www.renovateforums.com.au/dbtech/thanks/images/likes.png)
![Needs Pictures](https://www.woodworkforums.com/images/smilies/happy/photo4.gif)
![Picture(s) thanks](https://www.ubeaut.biz/wave.gif)
Results 1 to 6 of 6
Thread: Water pressure
-
12th July 2009, 08:51 PM #1
New Member
- Join Date
- Dec 2008
- Location
- mooroolbark
- Posts
- 1
Water pressure
HI Guys, just wondering for some help. I have the ol gravity fed water system in the roof. Im in the process of selling the house , ive changed some taps over, ( not pipes) and now the hot pressure ( none ) obviously drains out of the tap. My question is, without changing it all over and getting an electric mains, is there a pump or anything that can be done to give that little bit of boost to the water ?
thanks
-
12th July 2009, 09:30 PM #2
Have you checked that the HW lines aren't constricted by deposits?
Could be as simple a fix as cleaning 'em out. Not that that's really simple, but still...
- Andy Mc
-
13th July 2009, 12:45 AM #3
New Member
- Join Date
- Dec 2008
- Location
- mooroolbark
- Posts
- 1
what is the easiest way to flush them out. is there something you can get like a draino product to flush them out?
The cold pressure is fine and comes out really good, its the hot from the gravity thats a bit slow or weak
-
13th July 2009, 08:36 AM #4
Senior Member
- Join Date
- Feb 2009
- Location
- Oxenford
- Age
- 32
- Posts
- 0
Do you have solar hot water? If so, theres probably a problem with your pressure release valve.
Michael
If you cant fix it with a hammer, you have an electrical problem...
-
13th July 2009, 05:11 PM #5
Hot water lines seem to be more prone to lime scale than cold-water, so are generally the first to go. Old galvanised pipes are the most likely to suffer this problem (due to age, more than anything) but it's more likely you have ciopper lines. Or, if it's a relatively recent house, PEX.
If that is the problem. When you replaced the taps, did you notice heavy scale inside the lines or old taps? If not, then it's probably not your problem. Another possibility - esp. with copper or PEX lines, is that they've been crushed somewhere. Perhaps a too tight a bend?
Yet another thing to check is that the outlet of your header tank hasn't simply sucked up & caught a piece of crud. Not likely, but it has happened to me.
You need to be certain that the lines are OK, otherwise a pump or any other fix is just a patch, not a fix - and so is really wasted money. Pressure Booster Pumps are a LOT more expensive than flushing or patching damaged lines, after all.
If you want/need to go for a booster, try Googling "boosting water pressure.")
-----------
FWIW, the only way I know to DIY remove lime scale (but then again, I'm not a plumber) is to disconnect the output line after the HWS and fill it with vinegar. Let it stand for a week, then flush thoroughly. Repeat until the flushed vinegar isn't cloudy before reconnecting to the HWS.
A weak acid solution such as CLR or muratic acid would be a lot quicker, but I most definitely wouldn't use them in a potable water supply!
With the volume of vinegar needed 'tis a pretty expen$ive exercise, so you don't want to do it if you don't need to!
- Andy Mc
-
13th July 2009, 09:52 PM #6
New Member
- Join Date
- Dec 2008
- Location
- mooroolbark
- Posts
- 1
there copper lines and pretty good. The water before was ok, typical gravity speed.
No its not a solar HWS, however will look into the outlet in the tank to see if there is some crud up there. the water is clear and was clear even changed it. However speaking to a plumber today , he did say that the new taps nowadays have a flowmeter in them and you just need to break them off, as down the track they clog up.
Also found a grundfos circulating pump which is designed to go on the outlet of the pipe and it boosts the pressure by up to 10 metres, which isnt much , but they say its good and is designed for taps and showers. ill check it out this weekend and clean it out, dont think there would be crushed or bend as its never been like this until i changed the taps. then really noticed it. ill check it out, i know those pumps are a lazy $399 from Grundfos direct, but they swear by it.
those interested http://www.pumpwarehouse.com.au/category49_1.htm
thanks , just hate getting up there with all those cobwebs and dark places!
Similar Threads
-
low water pressure only in kitchen
By ubeaut in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etcReplies: 0Last Post: 16th November 2008, 07:10 AM -
Hot Water Pressure
By goforitifudare in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etcReplies: 20Last Post: 11th April 2008, 10:21 PM -
hot water pressure
By ledwards in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etcReplies: 8Last Post: 18th August 2007, 08:00 PM -
Water pressure really low - new house
By jmtheo in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etcReplies: 7Last Post: 19th September 2006, 03:34 PM -
Hot Water Pressure Problems
By DarrylF in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etcReplies: 6Last Post: 5th July 2006, 11:10 AM