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What do you do with your AWS when the plants in one or more of your boxes are done producing, while plants in the rest of your boxes are still producing?  I'd like to put a shut-off / on-off valve before each box so that I can shut off the AWS on individual boxes, but I can't find the correct size on/off valve.  I wanted to put the valve on the smaller 0.125" (1/8" ID) tubing.  Has anyone found a valve that works or a solution?  I have on-off valves on my drippers in my flower beds and they work great.  I emailed Earthbox and they said due to their tubing being ID's, it's hard to find parts elsewhere and they don't sell a valve. They suggested to either just leave the AWS on the empty box alone as the reservoir should stay full and it shouldn't pull any water, or they said I can put the sensor in a full glass of water to trick the sensor into thinking it doesn't need any water.  We have been in a heatwave, so I think the water in the reservoir on the empty box has been evaporating and the AWS keeps kicking on because I see that the deck around the box is wet every morning.  It's not a huge deal, but I figured someone on here must have found a valve that works.  I only have a couple of boxes so I could add a separate AWS line for each box on a faucet splitter if I have to.

Thanks, Pam
Questions and Answers / Re: Snack and basil?
« Last post by gardendoc on August 06, 2018, 09:14:50 am »
You're using the snack as it should be used.
Questions and Answers / Re: Snack and basil?
« Last post by pepperhead212 on August 06, 2018, 01:02:29 am »
I have added calcium nitrate to herbs and lettuce for the nitrogen, and it works well.  I don't add it as often - maybe every 3 - 4 weeks - instead of weekly, with  tomatoes and the like, as the plants are much smaller, and it would be easy to over-fertilize.
Questions and Answers / Re: Snack and basil?
« Last post by gardendoc on August 03, 2018, 09:17:51 pm »
Yes, both are susceptible to BER
Questions and Answers / Re: Snack and basil?
« Last post by mhjr on August 03, 2018, 03:49:13 pm »
how about snack on squash or cucumbers
Questions and Answers / Re: Snack and basil?
« Last post by gardendoc on August 03, 2018, 01:58:27 pm »
Sure, the snack is not only for tomatoes, but lower leaf yellowing can be a natural occurrence from growing as lower leafs often have their nutrients translocated to the active growing point. Now some folks don't like to fertilize herbs, you could go ahead and see if it helps or simply snip the yellow leafs off.
Questions and Answers / Snack and basil?
« Last post by Teagan on August 03, 2018, 11:46:30 am »
Can I use the snack for my basil? The bottom leaves are looking a tad light green/yellowish.
Questions and Answers / Re: snack
« Last post by Beau in Austin on August 01, 2018, 12:08:43 pm »
I got what sure looks like Calcium Nitrate via Amazon. It's more expensive than buying in bulk but I only have 5 EB's
Questions and Answers / Re: snack
« Last post by gardendoc on July 30, 2018, 09:43:31 pm »
forget about polls.     

The "snack" is calcium nitrate, 1 tsp every 7 to 10 days right down the reservoir tube.

It's available at real garden centers, not Lowes or Home Depot. Or Amazon.
Questions and Answers / snack
« Last post by mhjr on July 29, 2018, 02:52:52 pm »
looking for some instructions on snack for tomatoes
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