Has anyone tried building their own small plunge pool using a stock tank?

[Zephyr]

I’ve been seeing people online turn big galvanized stock tanks into mini plunge pools and it looks pretty doable. I’m thinking about setting one up in my backyard for summer but I’m not sure how practical it actually is long term. I’m wondering about things like filtration keeping the water balanced and whether the tank gets too hot in the sun. Anyone here tried it?

 

[syedsam]

I’ve been seeing people online turn big galvanized stock tanks into mini plunge pools and it looks pretty doable. I’m thinking about setting one up in my backyard for summer but I’m not sure how practical it actually is long term. I’m wondering about things like filtration keeping the water balanced and whether the tank gets too hot in the sun. Anyone here tried it?

Balancing water is the same as a regular pool but the small volume makes chemicals swing quicker. A tiny bit too much chlorine or acid changes the levels a lot so add everything slowly.

 

[Manikshaw]

I’ve been seeing people online turn big galvanized stock tanks into mini plunge pools and it looks pretty doable. I’m thinking about setting one up in my backyard for summer but I’m not sure how practical it actually is long term. I’m wondering about things like filtration keeping the water balanced and whether the tank gets too hot in the sun. Anyone here tried it?

The metal definitely heats up fast. Mine gets warm by afternoon unless I shade it. If you want cold plunge temps plan on putting it somewhere that doesn’t get full sun.

 

[Freddie]

I’ve been seeing people online turn big galvanized stock tanks into mini plunge pools and it looks pretty doable. I’m thinking about setting one up in my backyard for summer but I’m not sure how practical it actually is long term. I’m wondering about things like filtration keeping the water balanced and whether the tank gets too hot in the sun. Anyone here tried it?

I built one last year. The hardest part was setting up proper filtration. A small pump and cartridge filter work fine but you have to keep the hoses secure because the tank walls aren’t built for mounting equipment.

 

[Zephyr]

Good to know about the heat and the quick chemical swings. I may put it under a pergola to help control temperature. Thanks for all the tips.

 

[Ronald Taylor]

I built one last year. The hardest part was setting up proper filtration. A small pump and cartridge filter work fine but you have to keep the hoses secure because the tank walls aren’t built for mounting equipment.

 

[Barbara Jones]

Yep, exactly, I’ve seen plenty of liners with a few wrinkles in the deepest spot that still hold up for years, the key is no sharp creases, nothing that feels “pinched” underfoot, and a stable water level.

 

[David Harris]

The metal definitely heats up fast. Mine gets warm by afternoon unless I shade it. If you want cold plunge temps plan on putting it somewhere that doesn’t get full sun.

I’m with what Manikshaw pointed out about heat. From what I’ve noticed too, metal containers heat up fast, so if you leave it in full sun, the water changes temperature really quickly. I think where you place it matters just as much as how you filter it.

 

[Vikram Ahmad]

Balancing water is the same as a regular pool but the small volume makes chemicals swing quicker. A tiny bit too much chlorine or acid changes the levels a lot so add everything slowly.

From what syedsam mentioned about chemical swings in a small volume, that’s very real. I helped set up a similar tank-style pool and the biggest difference was how quickly pH and sanitizer levels changed after rain or heavy use. You end up testing more often because the margin for error is smaller. On heat, Manikshaw is right too, full sun warms it up fast. I think it can be great for summer, but you need to be more disciplined with maintenance to keep the water stable.

 

[Sean Whitaker]

Looks like most of the main points were already covered, but one thing I ran into with a stock tank setup that surprised me was how fast the filter pressure creeps up compared to a normal pool. The water volume is tiny, so even a little dust, pollen, or a couple people jumping in can load the cartridge pretty quick. Mine would jump a few psi in a couple days and the flow from the return would start looking weak.

I ended up running a small Intex cartridge setup at first but eventually swapped to a tiny sand filter combo, the kind people use on above ground pools. It handled the debris way better and I wasn’t rinsing cartridges every other day. Also noticed the pH drifted upward faster when the pump ran longer during hot weeks, probably from the extra aeration in that small body of water.

Shade definitely helps with the heat like others mentioned, but honestly the biggest quality of life improvement for me was just slightly oversizing the pump and filter for the tank. The water stayed clearer and the system didn’t feel like it was constantly struggling. Anyone else notice the filter pressure climbing faster on these setups?