Nah you're good, until recently I have never used more than 2 feet of vertical elevation for the reservoir...
If you can have directly next to the plants or just outside the tent it will work. If it's further away you'll need to raise it a bit. The directions on how much are on the tropf blumat page.
It's best to water to full saturation, then install the carrots for "last drop hanging", then close 3 more marks.
Since you watered it might take a couple days for the soil to dry enough to suck the water from the carrots and open the valve in the cap.
BTW they're good to go after an hour's soak, no need to water them for days or even weeks, the clay is not that thick, water will permeate it quickly.
When i set mine I try to be around for a couple days to see if they're responding to the soil drying out so that I can intervene if something went wrong. After they have opened and closed again for the first time, I tend to forget about them.
Best of luck
CC
Ok so a quick update. I got the measuring tape out. I was not even a foot above the carrots. Its cramped in there so trying not to knock the 5gal bucket Rez over into the tent or the electrical. I did notice soil drying out on the very top also one dripper actually dripping a bit. Should the tops be drying out?
Blumat instructions say minimum .5m height for 10m of tubing. I have about 5 ft of total tubing and just trying 3 plants to start out going up to 9. So would this .5m/10m (1.51ft/32.8ft)deal work as a ratio? I am not experienced with calculating head pressure. I will need to come up with a way to raise the Rez but its a small closet and the bucket is behind the door and don't really want to put it above the tent worried even a small leak might make its way to some electrical stuff.
These are 1 gal soil feeding just RO plan to hand water as needed. Sativa OHz and my Granny Hz. I thought the idea would be highly beneficial as with the pure sativa's I've run Indoor in the past needed small pots to keep from stretching but this also causes them to dry out very quickly so imagined they would be healthier overall with proper watering and coming from a hydroponic background I prefer working with a drip type system on a timer so I don't have to mess with them. Handwatering has a great deal of drawbacks not just the time involved but the plants are really not kept at an optimum level.
Hope it works if not I will just toss a drip and pump on them and hope they don't suffer if I have to leave them for a week. Not sure a week is long enough to know the blumats will get the job done.