Household bleach works fine for shocking a pool

Yes, you can use regular household bleach instead of commercial pool shock.

Bleach is sodium hypochlorite, same active ingredient as liquid pool shock. The main difference is concentration: pool shock is usually 10-12% sodium hypochlorite, while standard household bleach is 6-8.5%. You just need to use a bit more bleach to get the same dose. There are calculators online, but roughly 1.5x the volume.

Three things to watch: no additives, no scents, no splash-less formulations. Plain, unscented, regular bleach only. Anything with surfactants, thickeners, or “cloromax” tech will cause foaming or cloud your water.

Also, pool shock often has stabilizer (cyanuric acid) to protect chlorine from the sun. Bleach doesn’t. If your pool is in full sun, you may need to add stabilizer separately or shock more often.

Bottom line: it’s cheaper and works. Just be careful handling bleach — it’s strong enough to ruin clothes and burn skin. Use gloves, don’t mix with anything else.

You’re not saving that much money, but it’s nice to have a backup option when the pool store is closed.