For those of you who have pot plants, I came across a very simple and cost-free way of buying a bit more time before your pot plants shrivel away thru' lack of water in your absence. I hadn't come across this method until recently, so if it is common knowledge then sorry.
If you take a bucket of water and set it at a slightly higher level - just a couple of inches/centimetres - than the pots you want to water, then soak a long piece of old cotton rags in water (in my case an old T-shirt ripped up). Place one end of the rag in the bucket of water and trail the rag over the side and just rest the other end on the soil of the pot. As per the - admittedly very basic - sketch. You will find the water slowly syphons into the pot over a few days - slow drip feeding if you like. Make sure the end that is in the bucket can reach the bottom as the water level drops. Hopefully you will come home to an empty bucket and a still-alive plant. Much cheaper and easier than automatic watering systems don't you think?
If you take a bucket of water and set it at a slightly higher level - just a couple of inches/centimetres - than the pots you want to water, then soak a long piece of old cotton rags in water (in my case an old T-shirt ripped up). Place one end of the rag in the bucket of water and trail the rag over the side and just rest the other end on the soil of the pot. As per the - admittedly very basic - sketch. You will find the water slowly syphons into the pot over a few days - slow drip feeding if you like. Make sure the end that is in the bucket can reach the bottom as the water level drops. Hopefully you will come home to an empty bucket and a still-alive plant. Much cheaper and easier than automatic watering systems don't you think?