The "carrot" ceramic sensors run 3mm drip line that's unique to them (super soft silicone). They come with a short length attached but most people buy spare to run them long. Not found a useable replacement for that so official tubing is advised. They also come with a 3mm to 8mm tee piece connected to attach to the feed line.
The main feed line is just standard 8mm tubing and they have a bulkhead fitting for the reservoir (both included in the pack), but any can be used then reduced down to the right size. There's also a few assorted tee pieces and an end stop in the Tropf Blumat pack.
They sell a pressure reducer separately if you don't want to use a res and prefer a tap/hose fitting. Brings the pressure to around 6psi I believe.
The essential parts are the sensors and the drip line, the rest can be diy'd/macguyver'd/a teamed
If you run it as a single line with no return to res then you will need an end piece for the last sensor in the chain or a stop tap/someway to block off the feed tube.
When I set up my raised bed I will run a loop, 2 bulkheads in the res, 1 long feedline round the bed and back to the tank,and a drain tap half way round the feed line for bleeding air and draining the res
Works as a redundancy too, if one side clogs you still have water available to the feed line.
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