Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-01-2013, 10:59 AM   #1
Member
 
Join Date: Mar 2012
Posts: 133
Share |
Default

Mixing valve


I have doing alot of reading about the hot water mixing valves that are now code in my area.
I dont really get the powers that implement, these new laws ,as they are concerned about kids getting burnt from very hot water at the Tap.. how many people have 60 C hot water as soon as you turn it on, if the kids are getting burnt by hot water they need to look at the parents not the plumbing.....and as far as Legionnaires' disease, keep your hot water tank set at 60 c.
These valves don't seem to last long and are expensive, and just something else to deal with.. I don't have one on my house and don't plan on getting one.When i turn the hot water tap on it would take a good 30 secs or more depending how close it is to the hot water tank to get hot water.Dont you think some of these codes are not very well thought out.

rick31797 is offline   Reply With Quote
Old 04-01-2013, 12:02 PM   #2
Always learning...
 
fetzer85's Avatar
 
Join Date: Dec 2009
Location: Northern WV
Posts: 452
Default

Mixing valve


I replaced our old shower mixing valve last year b/c it was leaking. The new one is a thermostatic mixing valve and I personally like it. The old valve would burn the crap out of you if you were in the shower and a large amount of cold water was used elsewhere. (ie. flushing a toilet, washer running, using a sink...) The new valve now automatically adjusts the incoming water so that we can't get burned in those situations. I can't speak to their lifespan compared to the older valves, but as far as their functionality goes, they are a big improvement in my eyes.

fetzer85 is offline   Reply With Quote
The Following User Says Thank You to fetzer85 For This Useful Post:
Dave Sal (04-01-2013)
Old 04-01-2013, 12:15 PM   #3
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 2,140
Default

Mixing valve


Quote:
Originally Posted by rick31797 View Post
I have doing alot of reading about the hot water mixing valves that are now code in my area.
I dont really get the powers that implement, these new laws ,as they are concerned about kids getting burnt from very hot water at the Tap.. how many people have 60 C hot water as soon as you turn it on, if the kids are getting burnt by hot water they need to look at the parents not the plumbing.....and as far as Legionnaires' disease, keep your hot water tank set at 60 c.
These valves don't seem to last long and are expensive, and just something else to deal with.. I don't have one on my house and don't plan on getting one.When i turn the hot water tap on it would take a good 30 secs or more depending how close it is to the hot water tank to get hot water.Dont you think some of these codes are not very well thought out.
The code is not written to deny you a hot shower, It is written to protect people who have passed out in the shower for medical or other reasons. Some folks have passed out hitting the handle on the way down and ended up scalding themselves as they lay in the shower with hot water pouring on then. Some have received very serious burns which if not killing them required many years of skin grafts and pain.

Under the IPC your temperature can be set between 110 F through 120 F

Try holding your back of your hand under 120 F for 10 minutes and let me know if that is not hot enough.
Ghostmaker is offline   Reply With Quote
Old 04-01-2013, 12:38 PM   #4
Always learning...
 
fetzer85's Avatar
 
Join Date: Dec 2009
Location: Northern WV
Posts: 452
Default

Mixing valve


We have our WH set @ 140F, not because we need to use the water at that temp, but because it works better for our needs. It probably helps in the dishwasher but the real reason is for showering. My wife and 2 daughters prefer to shower in the morning and if the WH is set in the 110-120 range it doesn't last long enough. At 140 it seems to be fine.
fetzer85 is offline   Reply With Quote
Old 04-01-2013, 01:31 PM   #5
Member
 
Join Date: Mar 2012
Posts: 133
Default

Mixing valve


Well our shower has a moen posi-temp pressure balancing valve on it, so if someone does flush the toilet there is little change in the temp.I thought the code had to do with Legionnaires' disease.

Seems a bit of a stretch to say this code added because of seniors passing out in showers, what if they leave a gas stove burner on.
rick31797 is offline   Reply With Quote
Old 04-01-2013, 03:20 PM   #6
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 2,140
Default

Mixing valve


Quote:
Originally Posted by rick31797 View Post
Well our shower has a moen posi-temp pressure balancing valve on it, so if someone does flush the toilet there is little change in the temp.I thought the code had to do with Legionnaires' disease.

Seems a bit of a stretch to say this code added because of seniors passing out in showers, what if they leave a gas stove burner on.
It requires 126 degree water to kill legionilla virus. I seriously doubt you will get a large concentration between the valve and the shower head,
Ghostmaker is offline   Reply With Quote
Old 04-01-2013, 03:23 PM   #7
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 2,140
Default

Mixing valve


http://media.wattswater.com/F-H20LS-Reprint.pdf read up.

The valve also keeps a large temperature flux hitting you when other fixtures are used... The jerk reaction may cause you to fall.
Ghostmaker is offline   Reply With Quote
Old 04-01-2013, 03:24 PM   #8
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 2,140
Default

Mixing valve


Quote:
Originally Posted by fetzer85 View Post
We have our WH set @ 140F, not because we need to use the water at that temp, but because it works better for our needs. It probably helps in the dishwasher but the real reason is for showering. My wife and 2 daughters prefer to shower in the morning and if the WH is set in the 110-120 range it doesn't last long enough. At 140 it seems to be fine.
The temp I was quoting is for the shower valve itself. Hot water tanks can be up to 140 degress.
Ghostmaker is offline   Reply With Quote
The Following User Says Thank You to Ghostmaker For This Useful Post:
fetzer85 (04-01-2013)
Old 04-01-2013, 05:14 PM   #9
Member
 
Join Date: Oct 2011
Location: pa
Posts: 4,292
Default

Mixing valve


yep agree somr laws and codes can be petty and annoying....but this was a good code ..because it protects eveybody form a mishap that use to happen all the time....say your taking a shower in the old days....nice a hot then all of a sudden you hot turns to all cold..what a shock your reaction is to get out of the way ..well most older ones fall and get hurt some very serious....hope you never have to learn the hard way about certain laws and codes that there intended purpose it to protect...even if it is inconvenient...ben sr

ben's plumbing is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to diagnose gas valve problems Nestor_Kelebay How To Guides 28 10-30-2013 04:19 PM
Mixing Valve replacement mediaman67 Plumbing 20 03-02-2010 10:19 PM
Mixing Valve Replacement TeamRoper Plumbing 3 02-15-2009 04:18 PM
Resource for understanding gas valve? darsunt HVAC 19 02-03-2009 11:08 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.