If you want to you can add volume by adding buckets or tanks or even build or install buried cisterns. Or you can treat the entire yard as a cistern by drilling a well and installing a pump. Hand powered or electric. Either works.

https://hell.twtr.plus/media/7f/19/6f/7f196f4386762b4a4afe130ce88fc787b92507ce5df229934a047a6e1b1e2937.file