Filling hot tub

[ItsUncleBob]

Hi Friends,

I will be replacing water in the tub... Read somewhere that I should not test or add any chemicals until water is warm ...

I guess it is safe to put chlorine right away ?
Wait for it to warm up then add calcium etc

Thank you

 

[cowboycasey]

I never waited, it will test the same weather cold or warm

 

[BMK]

I never waited, it will test the same weather cold or warm

Same

 

[jseyfert3]

The only test I'm aware of that's temp dependant is the CYA test, which should be roughly room temp. Very cold water (like a new fill) or very hot water (like a fully heated spa) can throw off the test results on that one if you don't let it warm or cool to the approximately room temp.