February 20, 2022

* Updated at: May 2, 2022

I wanted to dive into hydroponics in the cold winters here to grow some fresh produce.

This project was inspired by Mary and Joe's youtube channel so please go check them out to see a video of there setup.

Started with some 1.5" pvc tubes, a few wyes, caps, elbows, and sanitary tees. Lay them all out and glue them together with some pvc glue. I used the gorilla glue brand that self primes. It seemed more food safe. Each vertical hole and diagonal hole is about 8 inches apart. If I did it again, I would space them about 12 inches because everything gets so big so fast. I did not glue each tower to the sanitary tee so they could be removed for cleaning. I also did not glue the cap on at the top.

Mount everything on the wall with shelf supports underneath. 

Drill holes into caps and put in irrigation lines. I made the holes at a slight angle so the water could hit the hole side of the pvc and run down over all the roots.

Back side with water reservoir, pump, and optional spigot. The spigot has been awesome for adding nutrient water to random other plants or Kratky setups. Both elbows are not glued so you can rotate the drain pipe up to take the lid off the reservoir.

Start seeds in rockwool. This DIY light with led strips was not powerful enough. 

Random radish experiments with Kratky method and coco coir.

 Better light bar on the bottom and new DIY light setup on top. Much better results from both.`

Tried to see if PH levels vs tap water, vs melted snow water affected growing outcomes. Differences were minor.

Tomato and Cabbage in Kratky method


Salad bowl lettuce roots


Ripe tomatoes!

Tons of lettuce to harvest each day.

Bill of materials

Lights 1001$100.00https://amzn.to/3LhLUp9
rockwool 1.5" x196201$20.00https://amzn.to/37zx6Up
pvc 1-1/2 cap0.916$5.46https://amzn.to/36KRr8M
nut sack61$6.00https://amzn.to/3OwcfSp
Gorilla Glue PVC101$10.00https://amzn.to/3LeZc5F
GH nutrients191$19.00https://amzn.to/3LdnNYN
ph meter131$13.00https://amzn.to/3vakSKR
pvc 1-1/2 wye225$50.00https://amzn.to/3rPP8bT
PH up/down181$18.00https://amzn.to/3xTKg9l
Clay pebbles - small131$13.00https://amzn.to/3vynUHy
rockwool 1.3" x4891$9.00https://amzn.to/3EFVXC2
PVC pipe 1-1/2 x 10'5.52$11.00https://www.lowes.com/pd/Charlotte-Pipe-1-1-2-in-x-10-ft-330-Sch-40-Solidcore-PVC-DWV-Pipe/3133037
Drip irrigation--
https://www.dripdepot.com/  item number below
DIG Standard Punch - 1/4" Hole$1.731$1.731173
Goof Plug - Size : 1/4"$0.0810$0.801176
Barb Tubing Coupling - Size : 1/4"$0.0810$0.801070
Irritec Perma-Loc Tubing Coupling Valve - Size : 1/2"$1.732$3.461191
Barb Tubing Coupling - Size : 1/2"$0.265$1.301083
Barb Tubing End Cap - Size : 1/2" (16mm)$0.305$1.501604
Irritec Perma-Loc Tubing End Cap - Perma-Loc Size : 1/2"$0.715$3.551199
Irritec Perma-Loc Tubing Coupling - Size : 1/2"$0.585$2.901194
Irritec Perma-Loc Tubing Elbow - Size : 1/2"$1.095$5.451198
Schedule 40 PVC Slip Elbow - Slip Size : 1-1/2"$1.626$9.7213100
Polyethylene Tubing - Size : 1/4" (.170" ID x .250" OD) - Length : 50'$2.981$2.983274
Polyethylene Tubing - Size : 1/2" (.600" ID x .700" OD) - Length : 50'$8.491$8.493266
Garden Friendly Fungicide (Prevents root rot)131$13.00https://amzn.to/3vI5UKW
Seeds 241$24.00https://www.beyondorganicseed.com/
Extra Pipettes3.51$3.50https://amzn.to/3v6JVyh
EC/PPM measurement91$8.00https://amzn.to/3k5K7r8

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