Not everyone has the means to build a backyard swimming pool, but you shouldn’t ever let a little thing like money get in the way of true happiness. What this person did was fashion an above-ground swimming pool using nothing but PVC pipes and a huge plastic bag. If their calculations are correct, the pool’s walls can withstand hardly any water pressure after being filled.
But don’t let physics stop you from chasing your dreams. Perhaps if this DIY above-ground pool doesn’t work, they can convert it into a mini hydroponics pool for growing lettuce and other leafy greens. Now that’s versatility.