Tap Cold Water Temperature

[magic_clean]

Reviving this

to report that after nearly 2 months; with daily highs in the low to mid 90's (west central Florida) our cold tap water; is now in the low 90's!

 

[tomturbomatic]

Leslie, I believe it. I remember tales of GE combos in Florida condos and the high temperature of the cold water in the summer made drying take forever. I guess the snowbirds would have better results with colder water in the winter. Some Florida residents with well water can have cooler water in the summer, but where the water pipes go through the sandy soil, the water heats up. The sad thing is the situation with hot water in houses built on concrete slabs where the water pipes run through the slab. As soon as the flow of water stops, all of the heat in the hot water drains through the pipe into the cool slab.

 

For the record, our tap cold is 75F now.

 

 

[DADoES]

 
I got a peak of 99°F until the attic lines cleared, then settled at 89°F (well tank is in garage).

 

[tomturbomatic]

These high tap cold water temps in TX and FL made me think of Mac with the laundry where they had to add STPP to the first fill, termed a hot break, because the cold water was so warm it would set blood in the fabrics. I hope he is in a happy place, bless his gentle soul.

 

[appnut]

heat in the hot water drains through the pipe into the cool

Tom, thank you for putting into words my suspicion for the last 31.5 years.  My pipes run through my foundation.  this phenomenon is quite noticeable during the winter at its coldest.  Not only do I purge water before turning on the dishwasher, I will sometimes purge water for particularly the 1st post wash rinse and sometimes even the 2nd post wash rinse, particularly if I'm using the 1 hour wash cycle.  The winter phenomenon is also particularly noticeable because the 120 degree water temperature is probably between 110 & 115 by the time it reaches my shower at the complete opposite end of the house to the water heater. 

 

[arbilab]

Whoa, another purger!    Shh, don't let the government hear us.  

 

Know any home machine with a purge?  Know any slab home with insulated hots?  Hence the ridiculosity of running everything on  'pans' (thermo-time) cycle to make up for half-gallon fills of water below skin temp (<94F) and counting all the 'savings' on their 'eco' machine while waiting for the gaw dam thing to finish.  Mostly what happens, eh? 

 

So much going against good results, wonder they ever caught on.

 

[mralex]

My tap water is around 15c - 59F during winter it could get as low as 7c - 44F

 

[sudsmaster]

In previous residences in the Bay Area, I've never noticed tap water to be significantly warmer in the summer. But in this abode, I definitely do notice it. I don't know if it's because the pipes run closer to the surface, or draw water from warmer sources. Sometimes it makes me wonder if the single handle kitchen faucet is mixing hot with cold, but the tap cold coming out of dual faucet sinks is about the same temp as in the kitchen.

 

[kb0nes]

When using an infrared thermometer to measure water temp it pays to check it against an immersion thermometer to be sure. My Fluke gun on its medium emissivity range reads about 10% high. Most infrared thermometers are fixed for a medium range which is good for any rough surfaces like stone, plaster and wood. High emmisivity surfaces will read high and shiny polished surfaces will read quite low.

Infrared non-contact measurement is handy but accuracy can be influenced by the surface being read.

Our cold tap water here in MN is 64 degrees F today

 

[cuffs054]

The city water here has gotten so warm I literally can't get a cold enough shower. This summer has been really hot.

 

[yogitunes]

I have a slight advantage into two systems...

city water was 72F

well water was 50F

you notice the change mainly in the shower as you have to adjust the temp selector to the cooler side....plus during the Summer, you select a cooler temp as well