My current method of watering the cups in a bin is to take a small cup, fill it with water, and pour it into each cup.  As I get more leaves and buds, this makes me more and more nervous.  I don't want to knock anything off or break something.

I started thinking about what would be my ideal watering solution.  I decided a watering can with a flexible hose on the end.  I could put the hose right down by the cup, pour and stop when I was done. Of course, it doesn't exist.

As I started thinking of building my own, I remembered a tube that would work perfectly.  It is part of my camelback reservoir.  It has a valve that can control speed (no idea why a camelback needs that, I never use it and the standard reservoir doesn't have it, just my BPA-free one).  I can easily remove the bite tip, as it is designed to be replaced (I guess if you wanted to replace it while hiking, the valve could save you some water).

http://smile.amazon.com/Camelbak-Antidote-Accessory-Reservoir-90857/dp/B00B5E9Q3M/ref=sr_1_4?s=outdoor-recreation&ie=UTF8&qid=1452845508&sr=1-4&keywords=camelbak+reservoir

It's a bit overpriced for a watering can, but I suppose I could even hang up the reservoir and just water with the tube.  The only thing I don't like is the idea of mildew building up inside the reservoir (I don't like the idea when hiking, either).  It would be better if the tube was hooked to a cup or something easier to clean out.

Any better ideas?

 

I have just been using a cheap one gallon pump sprayer with the nozzle cut off.  Without the nozzle the water comes out slow so it doesn't disturb the soil.  You can keep it filled with diluted MG solution or any other liquid fertilizer.

I have been using a turkey baster. One squeeze in each cup, not over watering.

I think the pump sprayer is your answer. You could also use a small watering can but it doesn't hold much water.

Pump sprayer! Good idea!

If you have them in a tub with a lid you wouldn't have to water them. Crack the lid or opening it for one hour once a day. Water problems solved.

I have a tub, but I don't use a lid.  The humidity causes me more problems than it's worth.

Thanks everyone for the ideas.  I like the turkey baster as it is very controlled.  The spray can also looks good as it should have a very slow flow.

Thanks again!

I don't even use a bin or tub.. My cuttings when rooted goes under my growing lights..Simple to water with a waist high table....Loose very few.....

At this point my reasons for using the tub are: carrying it around, catching water.  Not very good reasons but the tubs do the trick :)

I understood, just saying I am basically in the same boat but I just happen to set them in bins. They are not used as humidity bins unless I get brave and want to speed up some leaf growth.

To who it concerns in this post go read the " i LOVE COIR POST. AND READ ABOUT THE TUB

I bought this for precise watering of young plants, you can try this as well. 

http://www.amazon.com/gp/product/B008ASY406?keywords=500ml%20bottle&qid=1452901450&ref_=sr_1_11&sr=8-11

Thanks, Matt.  I did see that and it seems a decent solution as long as you don't have to reach down inside.  Does it squirt out a thin stream or a thick stream?