how long should i leave tap water out

had a little problem with my water now i need a liter of water to water my plants later its been sitting for a good few hours now ?

20-24 hr uncovered

i usually do like 24hrs with an airstone

so like 15 hr would not be ok for 1 liter in a jug ?

i tend to leave a 5 gallon bucket out uncoverded constantly changing every few days then i have as much as i need to water everything

I never use it before it has been out atleast 24hrs

Temps make a dif in times but 24 hr later watering wont kill your plants

I never wait at all. all hydro and aero cloner. ph after nutes are added and away we go. never had any problems with tap water at all. When I clone I use plain tap water ph'd to 5.8 and have 100% root rate. The level of chlorine in the tap water is less than the amount a lot of people add into their res's for fungus management. But to each their own.

im using soil shouldnt it be more acidic ?

Depends on the ppms of chlorine

so what would you do not water her till 2moro

Buy a gallon of water to tide you over for now.

Like fire said buy a gal of distilled water or wait. Good luck.

a gallon of what water i thort u could not use mineral water could i not boil a kettle and wait for it to cool down i only need a liter

If you wat to use it sooner, boil it, when it cools, use it.

distiled water will tesco sell that

so i can boil water or just buy sum mineral water correct

just boil the water and let it cool it will be fine