Portable showers have three water flow methods or the manner of how the water will be supplied to the shower.
Electric: This type has a better water pressure compared to the gravity types. Electric water pump is submerged in the water container to push the water through the hose.
Gravity: This is the most compact, and cheapest type of portable showers. They’re typically a bag that you have to fill with water first, then hang it on any steady pole and let gravity take its course.
Pump: This type of portable camp shower uses either a hand or foot pump to pressurize a water chamber so water can be sprayed out via a nozzle.
Between the three, the gravity type flow system has the lowest water pressure. There is also a challenge in finding a higher pole to hang the portable shower. The place where the portable shower will be hanged plays a crucial role in ensuring that the flow system will work, otherwise, your portable shower will be rendered useless.