House plant excess water drainage
I am interested in setting up an automatic watering system (pump, hoses, emitters, reservoir) for periods when I am away from home longer than a couple days. Since I am using a very well draining gritty mix, it's essential for the excess water to be collected into some kind of reservoir.
Does anybody know of any pot trays which allow a hose to be connected for leading away water? I'm looking for something that could be used in-place with regular indoor pots of various sizes. A reasonable solution would be whole pots with drainage pipes, although that would require repotting.
Below is an image from a patent, which illustrates what I'm looking for:
I'm thinking that I might be using the wrong search terms while looking around for a product like this, since English is not my first language.