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Any plumbers amongst us ?

J

Jim West Pa

New member
Can anyone explain to me the importance of hookin a built in dishwasher
up to a hot water line as opposed to a cold water line ?
 
is usually done with hot water. Some dishwashers have heaters in them but it seems that would take a lot more electricity to heat the water and take a lot more time. I am not a plumber but that is my thoughts on it. Cold water would not get them clean or sanitize them
 
Dishwashers have a heating element to heat incoming water to ~160F. If it's hooked up to the hot water line, sometimes it actually gets hot water and uses less energy to get to 160F. You can hook up to a cold water line. It will consume a bit more electricity and take more time to run the cycle.
 
smart azz :punch: haha
I spose i'm not very good at wordin my question.
I know ya needs HOT water to wash dishes.
In fact i make mine so hot that it makes my hands beet red.
( I don't even like dishwashers)
Anywho, one was given to us and in the course of our kitchen re-build, mumy wanted it installed.
It says on the unit PLUMB TO HOT WATER ONLY.
I was jist wonderin if this is simply because the unit doesn't heat the water itself.
Or because initialy puttin cold water to the unit has some adverse effect on the heating unit.
I mean, i've seen how hot they get inside if ya open one up mid cycle.
I'm thinkin that maybe they take the hot water fed to them and make it hotter (?)

Here's another question while we're at it.
Can HIGH calcium in the water edversely effect the pump or anything in the dishwasher.
We have spring water here, ( so pure and cold and clear the taste is to die for :inlove: )
But, it is seriously high in calcium.
So much so that i have to dismantle and clean our shower heads a couple o' times a month.
 
It takes a certain amount of energy regardless of the source to heat water. Electricity is 100 % efficient, an average gas water heater is about 65% while the tankless heaters run about 85%. Hybrds like the Eternal heater are 99% and very cost effective. This has nothing to do with hot water being supplied to the dish washer. There is a heating coil in all dishwashers to bring the water temp up to 160 to sanitize the dishes but if the incoming water is the normal 60-75 degrees most cold water is in a home, the dishes are washed and rinsed in cool water for a lot of the cycles before the water is hot enough. Hooking up to hot water brings at least 120 degree water right at the start of each cycle and greatly shortens the time to bring water temps up to the 160 that is needed to clean and sanitize the dishes. It is more a matter of clean dishes than energy savings. The most germs in a home come from the kitchen. There is more bacteria on an average kitchen sink than on a toilet seat. You want the hottest water you can have to kill off germs on your eatin' stuff. :lol: DC (When I started plumbing water was was not invented yet and rocks were still soft.) :D
 
That is a problem in a lot of areas around the country. It will build up on shower heads and fixtures as well as in your dishwasher. Now I could sell you a water softener and that would solve your problem, but some folks do not like the feel and taste of soft water, myself included. If you can live with it in the rest of the house you can solve your dishwasher calcium problem for less money than the zinc pennys you dig in a short hunt. When you have the dishwasher all loaded and ready to run, just put about a half a cup of white vinager in the machine and close the door and start it up. Calcium is a base and vinager is an acid, put them together and you get a clean dishwasher and your glasses will come out spot free. Not a good way to sell you a water softener is it? :lol: DC
 
before turning on the washer. My wife says I am nuts. One of us is, or maybe both:)
 
n/t
 
n/t
 
HOT water also helps to sterilize your dishes to prevent colds and infections. The doctor will cost you more money than what you will save on hot water!
 
You could also put an inline filter in the line under the sink feeding the dishwasher.

On a related note..........know why wedding dresses are white?























So the dishwasher matches the 'fridge :smoke:

Smitty
 
But only a small dedicated one for the washing machine.
Somethin i have yet to find.
Like you said, i hate the feel of soft water and we have the most delicious spring water here
i wouldn't even think o' messin with that.
I gotta ask ya this. Is the vinegar unhealthy for the septic system ?
Gotta keep those little poo eatin microbs 'nat alive in there :smoke:
 
aint we all ? :drinking:
 
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