Watering/Feeding Technique

[Clawhammer]

Hello.

I have about 300 orchids and am trying to figure out the best way to water to minimize effort and maximize efficacy.

When I had a few orchids I would soak the whole pot, can't do that now, too time consuming and could spread disease. When I got more orchids I began to take them to the sink. Too many now to do this.

I have them all setup in plumbed drainage trays so I can water in place with the hose I have run to the room. Watering with the hose is quick and easy, if I could do this everytime my I could take on a second career with the time saved. However, this does not feed the plants.

I have been watering first with a hose to get everything wet and then coming back an hour or so later after the bark is hydrated and I fertilize quickly with a pump sprayer. The point here is to only feed, the hydration is already taken care of, which saves fertilizer and a lot of time (pump sprayer is slow compared to the hose).

Will this work? Are my plants getting fertilized sufficiently (I use 1/4 every watering)? Are there alternatives like a hose attachment that mixes ferts at quarter strength?

Thanks in advance