You can build an elevated platform for drainage. Essentially a pallet to stand on.

There are some primitive options for warm water but they require the right climate and site.

For example, you could simply elevate a vessel (like a 55 gallon drum) and use the sun to heat it. Fill the drum from your spigot in the morning or the night before. Paint it black, so it absorbs the most heat. It heats during the day, you use it at night.

You can then have 55 gallons of water each evening. Of course it is dependent on having sunlight exposure.

It doesn't have to be a drum, it could be a PVC piping network, or a large bladder.