@budlarfy I have always said if it works for you run with it.
I have never planted a seed directly into a SIP as they tend to run a little wet for seedlings IMHO. With that said I believe the Dip system should work for now given your circumstances.
My prayers go out to your uncle. I hope he makes a speedy recovery.
When I saw your set up It got me thinking… Then, I went on a binge watching GroTech’s videos and got some ideas.
I saw that they used drip lines inside the res housing and this looks very clean. I like this as it does not require any modificatios of the Bucket/bag.
Then… … … I noticed in one of their videos they were using a float valve to water the bucket when the plant demands more H²O. Taking the guess work out of fidgeting with the drip system… You may be able to see the drip line with float valve installed next to the drain hole in the finger pic above.
I think the float value would be the ultimate set up for leaving your grow to do it’s thing while you are away. Video to set up with float valves can be found here
Anyway, Just though I would let ya know.
If you get a free moment you may want to check out CrunchBerries’Probiotic SIP Thread.
@CrunchBerries and the crew do a great job at anything and everything SIP related. I am sure they would love to see what you have going on over there. 