Lets Get ready for Spring before Christmas! I already started some seedlings and ordered my spring seeds!
I do not deny that I watch a bunch of YouTube videos to find out how to do things. My Hydroponics endeavors are no different. My original hybrid DWC/NFT system was based on a video I saw. However, the cost of the vinyl fence post always troubled me. It is also special order at any big box store.
I recently saw the videos on “Keep on Growin’ with Mike VanDuzee” He is my kind of guy, always looking to reduce the cost of Hydroponic gardening. He has a series on using vinyl downspouts from the big box store to save cost. It easier to source and a bit cheaper that the fence post. I had to give it a go. I believe you can order pre-made units directly from him.
I also saw the “DakineApproaches” YouTube auto watering Kratky method reservoir indicators and had to add that as well. I could never thank BA Kratky enough for sharing his knowledge, and pushing me to learn more about not only design ideas but chemistry and nutrient utilization.
Let the making begin!
One quick trip the the Orange big box store. It always is amazing what you can stuff in a Honda Accord, like 10 ft vinyl downspouts and PVC pipes.
I decided to mix 2 and 3 inch net cups to provide the most versatility. One 10 ft downspout made into three 40 inch runs with net cups on 8 inch centers starting 4 inches from the end. I plan to use this for lettuce indoors as you can expect lettuce to bolt in the Texas heat. The larger cups can support Pak Choi as well. Lettuce will be a perfect Kratky Method crop. I just monkey see monkey do some rails to plant them in. Since I don’t have a yard at my house outdoor space is limited. The form factor is perfect for inside under the LED lights.
Vinyl_Downspout_Kratky_method_Net_cups 
Vinyl_Downspout_Kratky_method_plug_epoxy 
Vinyl_Downspout_Kratky_method_plug_glue_up
Using the closed cell foam board in a pvc pipe to indicate fluid levels is as genius as the Kratky Method itself, and testing shows how simple it is. If you see the foam the reservoir has fluid.
All the skills and hobbies are tied together.
I did a quick mock up of an end cap in Lightburn and laser cut a test fit piece in plywood. I then cut out some acrylic end caps which are much cheaper that store bought fittings. I did not follow the example Keep on Growin’Mike VanDuzee where I first saw the downspout idea. He used a heat gun to fold up the downspout ends, but it leaves it open. I may convert this to hybrid DWC/NFT like the fence post model. I also am clumsy and don’t want any spilling inside. I also hate mosquito which TX has in spades. Of course I did not have any glue so 2 part Epoxy it is. It ran a bit and I will do a full leak down test as I am uncertain about the vinyl bond with the epoxy.
Vinyl_Downspout_Kratky_method_plug_testing 
Vinyl_Downspout_Kratky_method_plug_acrylic Vinyl_Downspout_Kratky_method_plug_glue_up 
Vinyl_Downspout_Kratky_method_plug_fit
Now the wait on the seedlings begins, but he pak choi is sprouting.