This method is more complicated, It is also a system which I have not tried for real yet. But I’ve detailed it here for completeness.
It involves flooding your plant table with nutrient solution for a set time. The nutrient solution is then allowed to Ebb away back into the holding tank. Now a delay occurs and the routine begins again.
This system requires more equipment than NFT, Including a Timer and something to allow the Ebb to occur.
This system is sometimes used where a more decorative system is needed, As pebbles can be placed between the plants on the table.