How often flush the container

[B727]

Thanks for your quick answer, Ray.
But isn't it enough to refill every 2 days and flush maybe after every 2 weeks?

[Ray]

Originally Posted by B727

Thanks for your quick answer, Ray.
But isn't it enough to refill every 2 days and flush maybe after every 2 weeks?

In my opinion, no.

As the water evaporates and is replenished from the reservoir, minerals and plant wastes concentrate in the LECA. Once they are absorbed and the LECA starts to dry, the deposits are very difficult to redissolve and remove. By flooding the pot with dilute nutrient solution at every watering you flush then saturate the medium, and refresh the chemistry of the reservoir.

When S/H orchid culture was first introduced, some folks routinely topped-up the reservoir, flushing only about once a month. Within a year or two they started noticing a general decline in their plants.

Others did the "flood-and-let-drain" technique at every watering and had no such issues.

[B727]

Ok thanks a lot.