I need to write new SSR's (Super Simple Recipes) for both tiny pools like your, and for larger pools.

However, you can modify the SSR (http://pool9.net/ssr/) for your situation:

1. Drain and refill every 2 weeks. (On pools that small, it's the only way)
2. Use dichlor to chlorinate. Use bleach only if you're out of dichlor. (This is covered in the SSR).
3. Use borax to raise the pH; get a bottle of 'spa pH Minus' to lower the pH . . . if you need to do so. But don't mess with it if the pH is between 7 and 8.

Otherwise, the SSR covers what you need to know. Do be careful: tiny pools are heavily 'fertilized' by the people 'goo' from you and your family. And though it's not extremely common, such pools can become 'growth chambers' for some pretty toxic and dangerous micro-organisms, even more than a large pool would.

The ugly fact is that CARING for a tiny pool will cost several times as much each season, as BUYING such a pool costs.

. . . membership updated.