Ask Josh

Ask JoshWelcome to the Ask Josh area of the AutoPot USA website, here you can ask questions and have Josh reply with an answer!

Simply complete the question form below and submit your question to Josh. You'll then receive a reply on the website and via email!

Browse other questions and answers using the page numbers below. Note that the newest questions are shown at the top.

Please also check out our brochure, animations and potting up guide, as the answer to your question may be here:

My first try with easy 2 auto pots. Wife got one pretty good plant 2nd not so much.Cherry tomatoes. Are the pots supposed to go dry or always have some water in them? I filled pots with 50 50 Perlite/Coir dry. Water only in tank. It filled auto tray to 3/4". Dropped to 1/4" then refilled to 3/4". Is this correct behavior? Never goes dry. Thanks for your time Ed C. - Posted by Ed Cunningham

Hi Ed The pots are slightly elevated in the tray - even if you see water they run pretty much dry and the refill. Second run with the same soil will have less food - top feed or feed through the reservoir mineral nutrients - organics only top feed into pots as they would clog the aqua valves. josh

I have the GH duo line. will this fertilizer line work well with this sytem. I already have some autopots I purchased, looking to get airdomes for them, use some SS#4 for substrate, and maybe some hydrodon for the first couple inches(around the air dome.) I main question is will my fertilizer line work. How do I treat this system, like hydro? Should I PH my water a 5.5 or should I leave it around 6.5? Thanks, green217 - Posted by green217

GH duo line mineral feed works fine. Do not put more than 1 inch hydroton into bottom of pot. Your ph depends on the substrate you use - 5.5 - 5.8 coco . 6.0- 6.5 for soil - josh

On the easy to grow 48 system I was wondering what the area dimensions the system fits into. Like a 10'x20' using the configuration that you guys show. - Posted by Steve

please use our online layout calculator - quite easy to use and you will see exactly what you can fit in your designated area - 10 x 20 would be a sufficient area - josh

is biosevia ok to add to the resevioour? - Posted by flamez

sorry I don't know the product - rule of thumb is no organics through the reservoir - only mineral nutrients and additives -organics only top feed or mix through substrate - josh

Hi Josh, Bought a Flexi tank 105 gallon for indoor use, and before i could even use it once it started leaking out of the bottom.. whats the warrenty policy on these things? I would like to give you guys another chance if you can sen another one and ill send this one back, I really like the tank, just wish it was functioning better. LEt me know thanks! - Posted by Kory MCCary

Hi There. You have full guaranty on the tank - please return where you bought the tank and we will fully credit so you can buy a replacement - sorry for the inconveniences - josh

my area is 9'x9' what system would be best for me? I tried using your calculator but it keeps blocking me. - Posted by mike

Hi There - that really depends what you would like to grow ? In this space you can take all size systems we offer - josh

Hi Josh, I'm a home gardener, would appreciate if you could answer a couple of questions re the autopot system. 1. Can the autopot be used outdoors? i think the rainwater will inevitably flush the salt down to the roots from the top? 2. Do I need to use half-strength nutrient in the reservoir to avoid over-fertilizing? 3. What do i do with the substrates after each grow season, Do i need to flush them with clean water to remove the salts? Thanks. - Posted by Jack

1. yes system can be kept outdoors - turn off the system after raining and let the pots dry out - then turn back on - the plants will cope with the salts. 2. Yes you can do that - also fill reservoir for the week say on a Monday and add your nutrients on the following Tueasday or Wednesday to flush the roots zone and pipes with water only in-between. 3. Yes flush your substrate with water or enzymes only to flush out the salts or brake down the salts - Josh

wich size of airpump do i need for a 24 pot system. and do i need a airpump in the tank or the airdomes enough ? - Posted by S.

You can go from 200 gal\hour up to 1100gal\hour - depending on the tubing you choose 1[askjosh/jfaq.php] or 1 inch. You don't have to ad a extra air pump into the reservoir as it only would raise your PH - to blow oxygen direct to the roots is as good as it gets. Make sure you only turn on the pump after 2-3 weeks when plants have established - never less than 70degree - Josh

How does one manage to install a mini float valve on these soft sided reservoirs? If you don't offer a solution, you should. There are many uses for your reservoirs besides feeding your autopot systems. Thanks for the time... - Posted by Frenchfry

Hi there. All our new tanks have extra fittings for various different systems - Josh

Hello Josh Can i put an airstone in the Flexitank to oxygenate the water or would it have unwanted sideeffects? Best regards Anders - Posted by Anders Dahl

Hi there. You will only rise your ph in the reservoir - not advisable - if you would like to oxygenate your plants try our Airdomes - they blow oxygen direct to the roots.

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