How To Drain A Hot Tub Quickly. Drop one end of a long vacuum hose into the spa, and connect the other end to the wet/dry vacuum. There are three effective ways to drain your hot tub:
Next, find your drainage spigot. You certainly don’t want your hot tub trying to heat, filter, and pump while there’s no water inside the tub. Connect the hose to the water bib (that's the faucet on the side of your house).
A submersible pump can be used to quickly and easily drain your hot tub.
You certainly don’t want your hot tub trying to heat, filter, and pump while there’s no water inside the tub. They are also useful for many household tasks that require transferring water from one place to another. Run the hose’s open end to the draining place. Before you drain the water, test it to make sure the chlorine level is at zero.