My son has a birthday the end of April and I will really be pushing things having the water ready that early in the season for us. The outside temps may be decent (late 70's) but I will have to fire up the gas heater because the ground and my pool water will be in the 50's.
I dont want to turn the heat on until within a few days of the party (gas prices). I need to balance ahead of time. Is it sufficient to just bring in samples of water and let them get to room temperature before testing? Are there any caveats that will happen balancing at one temperature but testing at another?