Stale water?

[Steve G]

I set up a water change about a month ago and never did it. About 20 gallons of water w/salt has been sitting in a bin in an unused shower with a cover mostly on it. Heater and powerhead have been unplugged. Should I spill it out and start over or use it (readjusting the salt, add heat, and circulate)?

[Tri Bui]

As long as you have the lid on and nothing mess with it, you should be fine! just turn back the heater and powerhead for circulation. Measure the salt salinity and temp before water change.

[JMsAquarium]

What Don said, I would also let the powerhead stir it for a day or two and also test the PH. Then it should be ready to go.