Hydro grow, vacation and the water level

This is my first hydro grow, have always been a soil girl and now have a slight problem that I sure could use some help with.

I'm week one into flowering (Oct. 8th) and i know it will be probably 8weeks or so before its time to harvest. I tried to time the flowering so that i could harvest on Dec. 1; but ended up letting them veg about another 10 days.

My problem is that I'm going to Amsterdam on Dec 3 and won't be back until the 9th. So i'm worried about keeping the water level full or least close to it while i'm gone. So how can I keep the water level up until i get back.

Any thoughts on how to rig something up to keep it full? any help will be much appreciated. I've always grown in soil and wanted to try the AG thing i got for my birthday last year and thought i'd give it a shot, with soil i can rig something up, with this system i'm not sure what to do.

I do plan on posting phots once i get a chance. Right now i have five plants growing and will cut out probably two and keep it at three. I'm using my own femm'ed seeds from a previous grow of Shunk x A3, a new hybrid i got in AMS three years ago. thx, shannonball

You can always use a top off method. I have a RO/DI water system, so I just ran the water lines to a top off tank where the solution is already mixed. then I have a small pump that pumps the solution to the main tank. There is a float switch, that turns the pump on and off, in the main tank. You just have to make sure the holding tank is mixed and ready.

hi, thanks for the info. what is a RO/DI water system though. Sorry this is my first hydro grow and i'm still learning. I understand what you are talking about, just not sure what the RO/DI system is. thx, shann

Reverse Osmosis/Deionized water system. The floats valves are cheap, but the RO system is not. If you do not have this, you could always buy a ice maker water kit for a refrigerator. This will let you tap into your main water line, then run 1/4" tubbing to a float valve in a reservore, set your depth, and turn the valve on form the main line (the thing that lets you tap into your main water line with the tubing connected to it). This would only cost you around $20.