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Thread ID: 65705	2006-01-27 19:53:00	Electrical/plumbing help please	Greg (193)	PC World Chat

Post ID	Timestamp	Content	User
424702	2006-01-29 02:18:00	Your valve1, valve4, and valve5 pictures show the valve. There's a lever on it. Repeat in six month's time.Cheers for that. So what do you think the black lever is for?	Greg (193)
424703	2006-01-29 02:30:00	The valves at the front of the cylinder control the cold water going into the cylinder . The one at the bottom (with the black plastic cover on its lever )is a ball valve . It has two positions: on and off . The one halfway up is another shutoff before the non-return valve . You shouldn't ever need to touch those unless the pressure relief operates and clouds of steam appear at the outlet . Even then, just turning the power off should be the first thing . After that, using a hot tap to run very hot water out would be the best step . And you'd need those valves open to get cold water in to replace it . The one at the top is the only one you're concerned with .	Graham L (2)
424704	2006-01-29 02:38:00	.........tempering valve is not required and personally i hate the things as you can't get the water hot enough. 55 degrees....what a joke! talk about a PC and cotton wooled world.I'm not sure if the the tempering valve is a legal requirement in every case or not. I know that that previous owner of the house i'm staying in at the moment was forced to put in a tempering valve, but there's a coalrange here, so without a tempering valve there is the constant and real potential to have boiling water or steam on tap. I was told that i MUST put in a tempering valve when i replumbed my own house, a requirememnt i chose to ignore for reasons similar to the ones stated above... I mean, what good is 55° hot water... how pathetic, particually at the kitchen sink! When i do the dishes here, i usualy end up boiling the jug a couple of times to add to the 55° "hot" water coming from the tap, at home the waters hot enough to actually get stuff clean.	personthingy (1670)
424705	2006-01-29 03:34:00	Greg There doesn't seem to be too much wrong with the installation, if you're worried, get a plumber to check it out . Tempering valves are a requirement, they are there to protect people from scalding, eg . kiddies and the elderly who's skin is not as tough as yours . The pressure relief vlave at the top has a purpose, follow the instructions . Check the outlet point periodically to ensure it's not exhausting constantly . It looks like there are pressure equalisation valves there on the cold feed, but I'm a little rust on their appearance . Many modernish houses will have pressure equalised at the entry point to the house, with a stop cock and pe valve often tucked in a wall cavity in the garage . Goddie, AFAIK, they do not use sacrificial anodes these days, not on common or graden domestic mains pressure HWC's anyway . These cyliners can clap out in a remarkably short period time, a few years depending on temprature and water conditions but, is mainly due to the method of lap welding the seams of the inner rolled sheet rather than using slightly thicker material and butt welding it, so the seams go with sometimes disasterous results if you're not on to it in a hurray . They will often let go when when you get back from holiday and fire er up . Having ample capacity helps with longevity (less severe hot - cold cycling) . BTW, the comment re TA inspections brings out the cynic in me . And, low pressure plumbing in rural areas can be fraught with problems: So you like drinking the same water your animals are drinking from the trough outside, including their saliva . Yep, it happens :eek:	Murray P (44)
424706	2006-01-29 07:07:00	Tempering valves have been required for about 11 years now . Can't see one there . Your installation doesn't appear to have a drain either as everyone has said which is odd but not a big deal . We have a pressure relief valve but I only know that thanks to this thread . Never was sure what it did . :thumbs:	Winston001 (3612)
424707	2006-01-29 07:38:00	Just like PC repairs........everyones an expert. My husband is often called out to fix the home "plumbers" screwups.....	pctek (84)
424708	2006-01-29 08:00:00	In a new house we have just had built we have a similar mains pressure HWC and the tempering valve has been installed under the floor (wooden floor). So I wonder if your tempering valve is thru the wall to the right of the cylinder where the outlet pipe goes thru the wall at about knee hight in pic valve6.	Andrew B (867)
424709	2006-01-29 08:16:00	Just like PC repairs........everyones an expert. My husband is often called out to fix the home "plumbers" screwups.....And of course people never have to group together to make functional a home after "professionals" have stuffed up big time...... I've seen plumbers sparkys and builders take shortcuts that led to problems, usually in the interests of increasing personal profits after giving a firm quote for a job............ :stare:	personthingy (1670)
424710	2006-01-29 08:24:00	In a new house we have just had built we have a similar mains pressure HWC and the tempering valve has been installed under the floor (wooden floor). So I wonder if your tempering valve is thru the wall to the right of the cylinder where the outlet pipe goes thru the wall at about knee hight in pic valve6.The tempering valve requires cold water at the same pressure as the very hot, which it mixes to get water a "safe" (lame) temperature for the house supply. However, as the clearly visable pressure reduction valve is feeding only the HWC, it is unlikely the small detail of a tempering valve has been included in this installation. That's an extra $100 or so the plumber got to take home that week :p	personthingy (1670)
424711	2006-01-29 08:35:00	We're in a single level house . If this thing blows up me and missus are going sky-high cause it's right next to our bedroom :dogeye: All the other comments by everyone are sheer Greek to me . . . ! :confused: In that case you should employ a Greek Plumber!!! PJ :D :groan:	Poppa John (284)
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