av8or, when you say rooted clone ready to flip in 3 wks do you mean root mass established in a small amount of media or just dangling roots buried straight into the 7gal.
thirdtimes' explanation is right.. if 'power' goes out, the pump doesnt work and there will be no pulses and water will beSo, I've heard people say that one of the great things about this system is that in the event of a power loss the plants would still survive a while because of the wick (or tailpiece). I assume this is because the wick acts like a big straw and when the medium gets dry water will be drawn up into the medium via capillary action?
But, looking at D9's first page photos he has the hole for the return line at the bottom of the bucket, understandably so gravity can bring the nute solution back to the main res. But this means there is no nute solution left in the bucket. So what is there to be wicked up into the medium?
About to cut the holes in my buckets for the return line and what to make sure I get this right.
So, I've heard people say that one of the great things about this system is that in the event of a power loss the plants would still survive a while because of the wick (or tailpiece). I assume this is because the wick acts like a big straw and when the medium gets dry water will be drawn up into the medium via capillary action?
But, looking at D9's first page photos he has the hole for the return line at the bottom of the bucket, understandably so gravity can bring the nute solution back to the main res. But this means there is no nute solution left in the bucket. So what is there to be wicked up into the medium?
About to cut the holes in my buckets for the return line and what to make sure I get this right.
The buckets have the same water level as the reservoir. Gravity keeps the level even throughout the system
what? True, the bottom of the tailpiece (wick) must be below the water level of the rez but I put the tailpiece (wick) down to basically the bottom of the rez.. why only 2"s down? or am I missing your point?The bottom of the tailpipe must be below water level for any wicking. How much depends on height of bucket and length of tailpipe. With the build here the top of bucket is 11 inches. For a 4 inch air gap water level is 7 inches that gives you 2 inches of tailpipe below water level.
O.2" was just an example using parts D9 used in this build. 6" tail piece -4" air gap leaves 2" submerged.
Ec is dropping. Am I right to assume I need to raise my top off ec?