shower pool
When you dont have a pool but you have a cold shower to cool you down, preferably water temperture resembling pool conditions.
its so damn hot today, i think im gonna take a dip in the shower pool.
Pool shower
The act of rinsing off, when hot and/or sweaty, by taking a dip in the pool rather than taking a conventional shower.
I just worked out vigorously in the gym, and could not wait to take a pool shower to cool off.