going out of town for a few days is it safe?

[DeaconFrost]

hi guys

hopefully someone be able to give me some idea

I need to go off for 3 days, and the girls are around 24 days in flower today

the ph usually go from 5.8 to 6.8 after the 3rd day from adjusted

they take a gallon of water every 2 days, but theres still 3 gallons in the bucket whenever i top up and i do every 2 days.

i dont really know if they get tall much, i dont need to adjust the lights much, I much the lights up 2cm a day, some days i dont need to at all. i keep the lights very close to them, about an inch away, temp is good so i can keep them close.

so what would be the best things to do if i have to be away for 3 days? as i check on them everyday for lights, ph, temp and water

i think the ph and water level and temp wud be fine.

but how high should i move the lights so they wont touch the bulbs till i get back?

any input very much appreciated.

here's the link to my grow

Skywalker fem'd how does it look?

thanks