I’d like to preface this post by saying that if these issues have been dealt with before or the solutions appear to be self-evident, please bear in mind I lived through the 1960′s. I think that says it all.
I am working from the ”new” 3-plant airlift sytem pdf file. I am in the process of assembling the items in the Materials List (ML) and have a few questions:
1. the ML requires 1 x 3/8 OD – 1/4 ID Kuritec Reinforced
2 x 1/4 OD – 1/8 ID vinyl tube
1 x 3/8 OD – 1/4 ID (vinyl tube??)
Step 6 of the assembly instructions tells me to, “fasten together the bottle stack, the rod, and the lift tube (3/8 ID rubber tube at 4’6″ long).”
Is the ML missing an item or is there a mis-print in Step 6?
2. The ML calls for 5 liters of clay pellets. I can fill a heck of a lot of 3″ diameter net cups with a 5 liter bag of pellets. Do I really need this amount?
3. Should the vinyl tubing be clear or opaque? I’m thinking the tubing will be subject to “algae bloom” if it is clear. However, thinking is not one of my strong suits.
4. Does the size of the bottles used in the stack have to be 1.5 L? I didn’t realize that the 1.5 liter size was almost unheard of in this region, until i went looking for them.
5. I don’t wish to seem critical but I have to say that the less than $30.00 cost estimate is way off target. In this little corner of the world, (Atlantic Canada), an air pump of the specifications detailed in the ML is going to run me about $35.00. A 1 liter (about 35 oz) container of hydroponic nutrients will run me the better part of $25.00. (OK, they’re Canadian dollars but it’s all I’ve got to work with.) The actual cost really doesn’t matter to me, I like the concept. Plus anything that can give me fresh “sweet million” tomatoes in mid-winter is worth shelling out for. However, I do feel that the stated cost estimate is a bit mis-leading.
Thanks in advance for the advice and assistance.