Keeping temps while changing water

[Laticauda]

I made my own "python" type system, but I have a valve near the faucet. I turn on the water full blast hot, until I believe it has had time to fully reach the hottest temperature, then turn it down, using the thermometer to check the temperature is the same as the tank. After I am sure it's consistent, I open the valve towards the tank, and turn off the "temp check" valve.

 

[Jc1119]

I've figured out pretty much the right position for my faucet handle for the correct temp in my tank. Might be off by a degree or two, but I'm usually right on. I error on the side of a bit too cold than a bit too warm, partially because I keep a lot of fish where colder water changes are a spawning trigger anyway.

i do the same. Ive got it down to the point my wife can do water changes and only be off a degree or two......same faucet, same position for years

 

[dayak]

i run my single handle kitchen faucet, take out my tank thermometer, till i got the same number then attached my garden hose, then run it to my tank and viola same water temp, while water running i add the water conditioner

 

[suds1421]

I made my own "python" type system, but I have a valve near the faucet. I turn on the water full blast hot, until I believe it has had time to fully reach the hottest temperature, then turn it down, using the thermometer to check the temperature is the same as the tank. After I am sure it's consistent, I open the valve towards the tank, and turn off the "temp check" valve.

I do the same thing but do it by touch, they say you can feel a 0.5 degree difference.

The one thing that I will say is that my temp out of the tap will fluctuate so when I do a water change on my 75 I feel the water coming out of the hose and re-adjust if necessary.

I err on the side of slightly colder water than warmer.

 

[carsona246]

Just out of curiosity why err on the colder side? I always read that temperature shock was less likely to happen if it was warmer water. I keep coldwater salamanders now so I err on the cold side as well, just wondering if I read correctly.

 

[Laticauda]

Just out of curiosity why err on the colder side? I always read that temperature shock was less likely to happen if it was warmer water. I keep coldwater salamanders now so I err on the cold side as well, just wondering if I read correctly.

I, too err on the cooler side. Maybe placing a fish directly from warmer to colder water will cause shock, but the gradual decrease in temperature is similar to rainfall. (That's my logic at least.)