I need Plumbing Help... Any plumbers out there?

[Yo ssi]

I know I need 2 of the, the old sink used really old copper ones that can't be bent (at least not easily) and I tried using them but they are too long.

So that's your answer

[notyettaken]

So I bought this, https://www.homedepot.com/p/Glacier-Bay-Oswell-8-in-Widespread-Double-Handle-High-Arc-Bathroom-Faucet-in-Brushed-Nickel-HD67084W-6004/322116276

But it didn't come with the supply line connectors:


Is this what I need? https://www.lowes.com/pd/ReliaBilt-3-8-in-Compression-12-in-Braided-Stainless-Steel-Flexible-Faucet-Supply-Line/5013470599

the valve is usually 3/8 and your instructions say that your faucet is 1/2 so 3/8 to 1/2 looks good (however many faucets in that style are 3/8, and the instructions for the other option says 3/8, so I'm not 100% sure)

[stooges44]

I ended up getting it and B'H it worked

[elazarmn]

Anyone know the 3m filter that is best for undersink mount?

[ushdadude]

We got a new water heater 3 years ago and they installed mixing valve. Lately or water has inconsistent temperature (shower in the morning can be cold even though nobody used hot water in many hours) Plumber thinks it's the mixing valve. Should we replace it? Or just bypass it all together?

bump

[notyettaken]

bump

the mixing valve gives you more hot water from the tank (how? you ask. magic.) I would fix it and not bypass it.

[yos9694]

We got a new water heater 3 years ago and they installed mixing valve/tank. Lately or water has inconsistent temperature (shower in the morning can be cold even though nobody used hot water in many hours) Plumber thinks it's the mixing valve. Should we replace it? Or just bypass it all together?

Does hot water come out of the sink when the shower is running cold? That would support the theory that it's something to do with the shower. If the water is cold at the sink too then I'd look at the water heater, could be any number of causes.

[ushdadude]

Does hot water come out of the sink when the shower is running cold? That would support the theory that it's something to do with the shower. If the water is cold at the sink too then I'd look at the water heater, could be any number of causes.

same story with multiple faucets. water in the tank itself is piping hot

[yos9694]

same story with multiple faucets. water in the tank itself is piping hot

same story = cold from multiple faucets? Is there any faucet in the house that does give out hot water at the same time that the others do not?

[CountValentine]

same story with multiple faucets. water in the tank itself is piping hot

If all outlets are cold then it sure sounds like the mixing valve.
Never heard of a mixing valve before and had to go to YouTube. What is the reason you have one?

[Alexsei]

If all outlets are cold then it sure sounds like the mixing valve.
Never heard of a mixing valve before and had to go to YouTube. What is the reason you have one?

A very good reason to have a mixing valve is to extend the capability of your tank and maximize the amount of hot water you will get out of it, let's say you have a 60 gallon tank on the standard temperature compared to a 60 gallon tank piping hot higher than the standard temperature but using cold water to get to the standard temperature

[CountValentine]

A very good reason to have a mixing valve is to extend the capability of your tank and maximize the amount of hot water you will get out of it, let's say you have a 60 gallon tank on the standard temperature compared to a 60 gallon tank piping hot higher than the standard temperature but using cold water to get to the standard temperature

Got it. So, you have one mixing valve on the water heater? All outlets in the house received the mixed water (not sure what to call it) via the hot water line? If someone wants a hotter shower they are out of luck?

[Alexsei]

Got it. So, you have one mixing valve on the water heater? All outlets in the house received the mixed water (not sure what to call it) via the hot water line? If someone wants a hotter shower they are out of luck?

The mixed water temp = same temp as your standard hot water tank
The mixing valve brings the temp down to the standard temp so you aren't worse off

[CountValentine]

The mixed water temp = same temp as your standard hot water tank
The mixing valve brings the temp down to the standard temp so you aren't worse off

Some as in my wife like hot showers (120+). I wouldn't keep the mix temperature that high with kids in the house.
Been watching a few videos and I like the idea of a constant temperature. Not buying the line about it saving you money.

[Yo ssi]

Essentially every faucet is a mixing valve I would think

[CountValentine]

Essentially every faucet is a mixing valve I would think

Some are but some fluctuate (temp) wildly. Only showers in my house don't.

[skyguy918]

Some as in my wife like hot showers (120+). I wouldn't keep the mix temperature that high with kids in the house.
Been watching a few videos and I like the idea of a constant temperature. Not buying the line about it saving you money.

Think of it this way - let's say it's a 50 gallon tank. It's not the amount of gallons you can store that's technically important but the amount of energy/heat you can store. Let's say the standard factory setting is (numbers are made up, but the point is true regardless) 120F, but it can actually go as high as 150F. Those 50 gallons of 120F water hold less energy/heat than the same 50 gallons of 150F water. By setting it to 150F and putting a mixing valve right on the tank's outlet to bring it back down to 120F, you're pulling less from the tank, which means you effectively have much more than 60 gallons of 120F available, and the heater cycles on less, which generally means it's more efficient. If everything is working correctly it should output the same consistent 120F water as the tank would on the 120F setting.

This has nothing to do with how you mix the final product so to speak at the sink/shower/etc.

[CountValentine]

Think of it this way - let's say it's a 50 gallon tank. It's not the amount of gallons you can store that's technically important but the amount of energy/heat you can store. Let's say the standard factory setting is (numbers are made up, but the point is true regardless) 120F, but it can actually go as high as 150F. Those 50 gallons of 120F water hold less energy/heat than the same 50 gallons of 150F water. By setting it to 150F and putting a mixing valve right on the tank's outlet to bring it back down to 120F, you're pulling less from the tank, which means you effectively have much more than 60 gallons of 120F available, and the heater cycles on less, which generally means it's more efficient. If everything is working correctly it should output the same consistent 120F water as the tank would on the 120F setting.

This has nothing to do with how you mix the final product so to speak at the sink/shower/etc.

It takes a lot more energy to keep the tank at 160 degrees and will cycle a lot more. You also lose a lot more energy at 160 degrees.

Then factor in the length the water has to travel. At 120 it will take a lot longer for you to get 120 at the shower in the morning. Just wasting water.

Yes, the valve will get you more 120-degree water but won't save on your energy bill.

Just spit balling here. 

[Yo ssi]

Then factor in the length the water has to travel.

This actually makes it compelling, less of the fully hot water is traveling. I'm curious if the energy claim is accurate, it would be an interesting test. (Compare to heating a bigger tank)

Just spit balling here. 

Glad your back

[skyguy918]

It takes a lot more energy to keep the tank at 160 degrees and will cycle a lot more. You also lose a lot more energy at 160 degrees.

Then factor in the length the water has to travel. At 120 it will take a lot longer for you to get 120 at the shower in the morning. Just wasting water.

Yes, the valve will get you more 120-degree water but won't save on your energy bill.

Just spit balling here. 

I'm not sure where I was unclear in my explanation, but we're not on the same page here of how this setup works. I'll try to expand on this or find a good explainer video later when I have time.